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在ocean current這個產品中，有56篇Facebook貼文，粉絲數超過0的網紅，也在其Facebook貼文中提到， 今次真係去玩去癲嚟Ocean Park⋯⋯個水上樂園！🥳🥳🥳好玩到爆表啊！🤩🤩🤩 好玩到一衝入去全部人四圍飆💨💨💨，想集齊一家四口影張相都難！🤣🤣🤣我只可以分別同佢哋影到合照😂😂😂 我對以前水上樂園最深刻嘅印象就係「開心河」😆同啲friend攞個大水泡排勁耐落條河度撞嚟撞去，一路撞一路笑好開心！...
　同時也有16部Youtube影片，追蹤數超過5,140的網紅Ghost Island Media 鬼島之音，也在其Youtube影片中提到，Taiwan’s next referendum will soon vote on activating the nation’s fourth nuclear plant, as well as constructing a natural gas plant on an algal reef ...

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2021-09-13 12:11:55 有 44 人按讚
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今次真係去玩去癲嚟Ocean Park⋯⋯個水上樂園！🥳🥳🥳好玩到爆表啊！🤩🤩🤩

好玩到一衝入去全部人四圍飆💨💨💨，想集齊一家四口影張相都難！🤣🤣🤣我只可以分別同佢哋影到合照😂😂😂

我對以前水上樂園最深刻嘅印象就係「開心河」😆同啲friend攞個大水泡排勁耐落條河度撞嚟撞去，一路撞一路笑好開心！😜😜😜點解叫做「開心河」唔係冇原因！🤣🤣🤣
新嘅水上樂園都有條類似咁樣嘅河💦，宜家就輪到我啲仔女同friend喺條開心河度開心！（sorry我唔記得咗佢個真名係咩🙈係咁叫佢開心河🤪）

妹之最鍾意嘅就係「戶外流水麵」（係咁自己作啲名俾佢🤪）因為一踏入嗰條current，啲水就自己推住你去，我哋就好似啲一條條嘅流水麵咁，喺條河度係咁向前等人夾😛🥢🍜
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我自己去完嘅貼士：玩記得約埋幾個家庭一齊，組成家長互助委員會😌🤝其中幾個家長幫手睇住全部細路，剩返嗰啲家長就組隊衝去玩，返嚟再互換角色，如此類推！🤣🤣🤣咁就唔會淨係睇住啲細路玩，自己冇得玩！因為我都好鍾意刺激嘢🤩玩咗個「大喇叭」勁正🎉🎉🎉！只係未有時間挑戰到太空艙！🙈

今次要等放咗學late afternoon先嚟，玩到閂門都唔夠玩！一出門口大小已經問幾時再嚟🤪🤪🤪要約定下次了😂

@waterworldoceanparkhk #香港海洋公園水上樂園
#WaterWorldOPHK
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#大人細路都有得玩🥳
#tammuig #肉肉
#tamjai #冧之之兄妹 @mw81
#下次約幾時😆

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ocean current 在 We are 1730 Facebook 的最讚貼文

We are 1730 By We are 1730

2021-07-03 18:43:01 有 4 人按讚
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FLY：178/62
#今天穿什麼 #古著日常
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長 78 / 肩 54 / 胸 66 / 袖 29

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- We are 1730 !! - Used Vintage Clothing Studio - ?台北市中山區民生東路二段62號3樓 ?捷運行天宮站1號出口 ⏰營業時間： ☑週一至週日12:00~20:00 (全年無休，如有臨時店休則公告於FB及IG)
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ocean current 在 Taipei Ethereum Meetup Facebook 的最讚貼文

Taipei Ethereum Meetup By Taipei Ethereum Meetup

2021-04-21 13:57:23 有 4 人按讚
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📜 [專欄新文章] Uniswap v3 Features Explained in Depth

✍️ 田少谷 Shao

📥 歡迎投稿： https://medium.com/taipei-ethereum-meetup #徵技術分享文 #使用心得 #教學文 #medium

Once again the game-changing DEX 🦄 👑

Image source: https://uniswap.org/blog/uniswap-v3/

Outline

0. Intro1. Uniswap & AMM recap2. Ticks 3. Concentrated liquidity4. Range orders: reversible limit orders5. Impacts of v36. Conclusion

0. Intro

The announcement of Uniswap v3 is no doubt one of the most exciting news in the DeFi place recently 🔥🔥🔥

While most have talked about the impact v3 can potentially bring on the market, seldom explain the delicate implementation techniques to realize all those amazing features, such as concentrated liquidity, limit-order-like range orders, etc.

Since I’ve covered Uniswap v1 & v2 (if you happen to know Mandarin, here are v1 & v2), there’s no reason for me to not cover v3 as well ✅

Thus, this article aims to guide readers through Uniswap v3, based on their official whitepaper and examples made on the announcement page. However, one needs not to be an engineer, as not many codes are involved, nor a math major, as the math involved is definitely taught in your high school, to fully understand the following content 😊😊😊

If you really make it through but still don’t get shxt, feedbacks are welcomed! 🙏

There should be another article focusing on the codebase, so stay tuned and let’s get started with some background noise!

1. Uniswap & AMM recap

Before diving in, we have to first recap the uniqueness of Uniswap and compare it to traditional order book exchanges.

Uniswap v1 & v2 are a kind of AMMs (automated market marker) that follow the constant product equation x * y = k, with x & y stand for the amount of two tokens X and Y in a pool and k as a constant.

Comparing to order book exchanges, AMMs, such as the previous versions of Uniswap, offer quite a distinct user experience:

AMMs have pricing functions that offer the price for the two tokens, which make their users always price takers, while users of order book exchanges can be both makers or takers.

Uniswap as well as most AMMs have infinite liquidity¹, while order book exchanges don’t. The liquidity of Uniswap v1 & v2 is provided throughout the price range [0,∞]².

Uniswap as well as most AMMs have price slippage³ and it’s due to the pricing function, while there isn’t always price slippage on order book exchanges as long as an order is fulfilled within one tick.

In an order book, each price (whether in green or red) is a tick. Image source: https://ftx.com/trade/BTC-PERP

¹ though the price gets worse over time; AMM of constant sum such as mStable does not have infinite liquidity

² the range is in fact [-∞,∞], while a price in most cases won’t be negative

³ AMM of constant sum does not have price slippage

2. Tick

The whole innovation of Uniswap v3 starts from ticks.

For those unfamiliar with what is a tick:

Source: https://www.investopedia.com/terms/t/tick.asp

By slicing the price range [0,∞] into numerous granular ticks, trading on v3 is highly similar to trading on order book exchanges, with only three differences:

The price range of each tick is predefined by the system instead of being proposed by users.

Trades that happen within a tick still follows the pricing function of the AMM, while the equation has to be updated once the price crosses the tick.

Orders can be executed with any price within the price range, instead of being fulfilled at the same one price on order book exchanges.

With the tick design, Uniswap v3 possesses most of the merits of both AMM and an order book exchange! 💯💯💯

So, how is the price range of a tick decided?

This question is actually somewhat related to the tick explanation above: the minimum tick size for stocks trading above 1$ is one cent.

The underlying meaning of a tick size traditionally being one cent is that one cent (1% of 1$) is the basis point of price changes between ticks, ex: 1.02 — 1.01 = 0.1.

Uniswap v3 employs a similar idea: compared to the previous/next price, the price change should always be 0.01% = 1 basis point.

However, notice the difference is that in the traditional basis point, the price change is defined with subtraction, while here in Uniswap it’s division.

This is how price ranges of ticks are decided⁴:

Image source: https://uniswap.org/whitepaper-v3.pdf

With the above equation, the tick/price range can be recorded in the index form [i, i+1], instead of some crazy numbers such as 1.0001¹⁰⁰ = 1.0100496621.

As each price is the multiplication of 1.0001 of the previous price, the price change is always 1.0001 — 1 = 0.0001 = 0.01%.

For example, when i=1, p(1) = 1.0001; when i=2, p(2) = 1.00020001.

p(2) / p(1) = 1.00020001 / 1.0001 = 1.0001

See the connection between the traditional basis point 1 cent (=1% of 1$) and Uniswap v3’s basis point 0.01%?

Image source: https://tenor.com/view/coin-master-cool-gif-19748052

But sir, are prices really granular enough? There are many shitcoins with prices less than 0.000001$. Will such prices be covered as well?

Price range: max & min

To know if an extremely small price is covered or not, we have to figure out the max & min price range of v3 by looking into the spec: there is a int24 tick state variable in UniswapV3Pool.sol.

Image source: https://uniswap.org/whitepaper-v3.pdf

The reason for a signed integer int instead of an uint is that negative power represents prices less than 1 but greater than 0.

24 bits can cover the range between 1.0001 ^ (2²³ — 1) and 1.0001 ^ -(2)²³. Even Google cannot calculate such numbers, so allow me to offer smaller values to have a rough idea of the whole price range:

1.0001 ^ (2¹⁸) = 242,214,459,604.341

1.0001 ^ -(2¹⁷) = 0.000002031888943

I think it’s safe to say that with a int24 the range can cover > 99.99% of the prices of all assets in the universe 👌

⁴ For implementation concern, however, a square root is added to both sides of the equation.

How about finding out which tick does a price belong to?

Tick index from price

The answer to this question is rather easy, as we know that p(i) = 1.0001^i, simply takes a log with base 1.0001 on both sides of the equation⁴:

Image source: https://www.codecogs.com/latex/eqneditor.php

Let’s try this out, say we wanna find out the tick index of 1000000.

Image source: https://ncalculators.com/number-conversion/log-logarithm-calculator.htm

Now, 1.0001¹³⁸¹⁶² = 999,998.678087146. Voila!

⁵ This formula is also slightly modified to fit the real implementation usage.

3. Concentrated liquidity

Now that we know how ticks and price ranges are decided, let’s talk about how orders are executed in a tick, what is concentrated liquidity and how it enables v3 to compete with stablecoin-specialized DEXs (decentralized exchange), such as Curve, by improving the capital efficiency.

Concentrated liquidity means LPs (liquidity providers) can provide liquidity to any price range/tick at their wish, which causes the liquidity to be imbalanced in ticks.

As each tick has a different liquidity depth, the corresponding pricing function x * y = k also won’t be the same!

Each tick has its own liquidity depth. Image source: https://uniswap.org/blog/uniswap-v3/

Mmm… examples are always helpful for abstract descriptions 😂

Say the original pricing function is 100(x) * 1000(y) = 100000(k), with the price of X token 1000 / 100 = 10 and we’re now in the price range [9.08, 11.08].

If the liquidity of the price range [11.08, 13.08] is the same as [9.08, 11.08], we don’t have to modify the pricing function if the price goes from 10 to 11.08, which is the boundary between two ticks.

The price of X is 1052.63 / 95 = 11.08 when the equation is 1052.63 * 95 = 100000.

However, if the liquidity of the price range [11.08, 13.08] is two times that of the current range [9.08, 11.08], balances of x and y should be doubled, which makes the equation become 2105.26 * 220 = 400000, which is (1052.63 * 2) * (110 * 2) = (100000 * 2 * 2).

We can observe the following two points from the above example:

Trades always follow the pricing function x * y = k, while once the price crosses the current price range/tick, the liquidity/equation has to be updated.

√(x * y) = √k = L is how we represent the liquidity, as I say the liquidity of x * y = 400000 is two times the liquidity of x * y = 100000, as √(400000 / 100000) = 2.

What’s more, compared to liquidity on v1 & v2 is always spread across [0,∞], liquidity on v3 can be concentrated within certain price ranges and thus results in higher capital efficiency from traders’ swapping fees!

Let’s say if I provide liquidity in the range [1200, 2800], the capital efficiency will then be 4.24x higher than v2 with the range [0,∞] 😮😮😮 There’s a capital efficiency comparison calculator, make sure to try it out!

Image source: https://uniswap.org/blog/uniswap-v3/

It’s worth noticing that the concept of concentrated liquidity was proposed and already implemented by Kyper, prior to Uniswap, which is called Automated Price Reserve in their case.⁵

⁶ Thanks to Yenwen Feng for the information.

4. Range orders: reversible limit orders

As explained in the above section, LPs of v3 can provide liquidity to any price range/tick at their wish. Depending on the current price and the targeted price range, there are three scenarios:

current price < the targeted price range

current price > the targeted price range

current price belongs to the targeted price range

The first two scenarios are called range orders. They have unique characteristics and are essentially fee-earning reversible limit orders, which will be explained later.

The last case is the exact same liquidity providing mechanism as the previous versions: LPs provide liquidity in both tokens of the same value (= amount * price).

There’s also an identical product to the case: grid trading, a very powerful investment tool for a time of consolidation. Dunno what’s grid trading? Check out Binance’s explanation on this, as this topic won’t be covered!

In fact, LPs of Uniswap v1 & v2 are grid trading with a range of [0,∞] and the entry price as the baseline.

Range orders

To understand range orders, we’d have to first revisit how price is discovered on Uniswap with the equation x * y = k, for x & y stand for the amount of two tokens X and Y and k as a constant.

The price of X compared to Y is y / x, which means how many Y one can get for 1 unit of X, and vice versa the price of Y compared to X is x / y.

For the price of X to go up, y has to increase and x decrease.

With this pricing mechanism in mind, it’s example time!

Say an LP plans to place liquidity in the price range [15.625, 17.313], higher than the current price of X 10, when 100(x) * 1000(y) = 100000(k).

The price of X is 1250 / 80 = 15.625 when the equation is 80 * 1250 = 100000.

The price of X is 1315.789 / 76 = 17.313 when the equation is 76 * 1315.789 = 100000.

If now the price of X reaches 15.625, the only way for the price of X to go even higher is to further increase y and decrease x, which means exchanging a certain amount of X for Y.

Thus, to provide liquidity in the range [15.625, 17.313], an LP needs only to prepare 80 — 76 = 4 of X. If the price exceeds 17.313, all 4 X of the LP is swapped into 1315.789 — 1250 = 65.798 Y, and then the LP has nothing more to do with the pool, as his/her liquidity is drained.

What if the price stays in the range? It’s exactly what LPs would love to see, as they can earn swapping fees for all transactions in the range! Also, the balance of X will swing between [76, 80] and the balance of Y between [1250, 1315.789].

This might not be obvious, but the example above shows an interesting insight: if the liquidity of one token is provided, only when the token becomes more valuable will it be exchanged for the less valuable one.

…wut? 🤔

Remember that if 4 X is provided within [15.625, 17.313], only when the price of X goes up from 15.625 to 17.313 is 4 X gradually swapped into Y, the less valuable one!

What if the price of X drops back immediately after reaching 17.313? As X becomes less valuable, others are going to exchange Y for X.

The below image illustrates the scenario of DAI/USDC pair with a price range of [1.001, 1.002] well: the pool is always composed entirely of one token on both sides of the tick, while in the middle 1.001499⁶ is of both tokens.

Image source: https://uniswap.org/blog/uniswap-v3/

Similarly, to provide liquidity in a price range < current price, an LP has to prepare a certain amount of Y for others to exchange Y for X within the range.

To wrap up such an interesting feature, we know that:

Only one token is required for range orders.

Only when the current price is within the range of the range order can LP earn trading fees. This is the main reason why most people believe LPs of v3 have to monitor the price more actively to maximize their income, which also means that LPs of v3 have become arbitrageurs 🤯

I will be discussing more the impacts of v3 in 5. Impacts of v3.

⁷ 1.001499988 = √(1.0001 * 1.0002) is the geometric mean of 1.0001 and 1.0002. The implication is that the geometric mean of two prices is the average execution price within the range of the two prices.

Reversible limit orders

As the example in the last section demonstrates, if there is 4 X in range [15.625, 17.313], the 4 X will be completely converted into 65.798 Y when the price goes over 17.313.

We all know that a price can stay in a wide range such as [10, 11] for quite some time, while it’s unlikely so in a narrow range such as [15.625, 15.626].

Thus, if an LP provides liquidity in [15.625, 15.626], we can expect that once the price of X goes over 15.625 and immediately also 15.626, and does not drop back, all X are then forever converted into Y.

The concept of having a targeted price and the order will be executed after the price is crossed is exactly the concept of limit orders! The only difference is that if the range of a range order is not narrow enough, it’s highly possible that the conversion of tokens will be reverted once the price falls back to the range.

As price ranges follow the equation p(i) = 1.0001 ^ i, the range can be quite narrow and a range order can thus effectively serve as a limit order:

When i = 27490, 1.0001²⁷⁴⁹⁰ = 15.6248.⁸

When i = 27491, 1.0001²⁷⁴⁹¹ = 15.6264.⁸

A range of 0.0016 is not THAT narrow but can certainly satisfy most limit order use cases!

⁸ As mentioned previously in note #4, there is a square root in the equation of the price and index, thus the numbers here are for explantion only.

5. Impacts of v3

Higher capital efficiency, LPs become arbitrageurs… as v3 has made tons of radical changes, I’d like to summarize my personal takes of the impacts of v3:

Higher capital efficiency makes one of the most frequently considered indices in DeFi: TVL, total value locked, becomes less meaningful, as 1$ on Uniswap v3 might have the same effect as 100$ or even 2000$ on v2.

The ease of spot exchanging between spot exchanges used to be a huge advantage of spot markets over derivative markets. As LPs will take up the role of arbitrageurs and arbitraging is more likely to happen on v3 itself other than between DEXs, this gap is narrowed … to what extent? No idea though.

LP strategies and the aggregation of NFT of Uniswap v3 liquidity token are becoming the blue ocean for new DeFi startups: see Visor and Lixir. In fact, this might be the turning point for both DeFi and NFT: the two main reasons of blockchain going mainstream now come to the alignment of interest: solving the $$ problem 😏😏😏

In the right venue, which means a place where transaction fees are low enough, such as Optimism, we might see Algo trading firms coming in to share the market of designing LP strategies on Uniswap v3, as I believe Algo trading is way stronger than on-chain strategies or DAO voting to add liquidity that sort of thing.

After reading this article by Parsec.finance: The Dex to Rule Them All, I cannot help but wonder: maybe there is going to be centralized crypto exchanges adopting v3’s approach. The reason is that since orders of LPs in the same tick are executed pro-rata, the endless front-running speeding-competition issue in the Algo trading world, to some degree, is… solved? 🤔

Anyway, personal opinions can be biased and seriously wrong 🙈 I’m merely throwing out a sprat to catch a whale. Having a different voice? Leave your comment down below!

6. Conclusion

That was kinda tough, isn’t it? Glad you make it through here 🥂🥂🥂

There are actually many more details and also a huge section of Oracle yet to be covered. However, since this article is more about features and targeting normal DeFi users, I’ll leave those to the next one; hope there is one 😅

If you have any doubt or find any mistake, please feel free to reach out to me and I’d try to reply AFAP!

Stay tuned and in the meantime let’s wait and see how Uniswap v3 is again pioneering the innovation of DeFi 🌟

Uniswap v3 Features Explained in Depth was originally published in Taipei Ethereum Meetup on Medium, where people are continuing the conversation by highlighting and responding to this story.

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ocean current 在 Ghost Island Media 鬼島之音 Youtube 的精選貼文

Ghost Island Media 鬼島之音 By Ghost Island Media 鬼島之音

2021-06-09 09:00:11 有 61 人看過 有 2 人喜歡
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Taiwan’s next referendum will soon vote on activating the nation’s fourth nuclear plant, as well as constructing a natural gas plant on an algal reef that's critical for Taiwan’s biodiversity. These decisions come as governments around the world are scrambling to meet the demands of the Paris Agreement, and as environmental activists fight for a more sustainable planet.

Green Parties propose an alternative voice in politics to tackle our environmental ruin. All over the world, there are 91 Green Parties that believe in committing our governments to environmental stewardship, through electing green movement leaders into office. In Asia, Taiwan is home to the region’s oldest Green Party, which won a National Assembly seat in 1996 - their very first election campaign.

Our guest today is Professor Dafydd Fell, a political scientist at SOAS University of London, and Director of the Centre of Taiwan Studies. Dafydd Fell is author of the new book: “Taiwan’s Green Parties: Alternative Politics in Taiwan”, published in March 2021 by Routledge.

Today’s episode is hosted by Nate Maynard - Senior Consultant at Reset Carbon, and host of Waste Not Why Not. You can check out his show for more insights on the world’s ocean, energy, and waste issues.

Waste Not Why Not Podcast: https://ghostisland.media/#wnwn

“Taiwan’s Green Parties: Alternative Politics in Taiwan”: https://www.amazon.com/Taiwans-Green-Parties-Alternative-Routledge/dp/0367650312

Routledge: https://www.routledge.com/Taiwans-Green-Parties-Alternative-Politics-in-Taiwan/Fell/p/book/9780367650315

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ocean current 在 楊雯雯(黑鬼兒) Youtube 的最佳貼文

楊雯雯(黑鬼兒) By 楊雯雯(黑鬼兒)

2020-12-26 22:00:14 有 1,803 人看過 有 58 人喜歡
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請訂閱黑鬼兒～https://pse.is/HNDFA 各國省錢旅遊　https://pse.is/KRX8K
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ocean current 在 Tracy L. 紙上旅行 Youtube 的最佳貼文

Tracy L. 紙上旅行 By Tracy L. 紙上旅行

2020-08-15 18:59:53 有 180 人看過 有 5 人喜歡
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音樂 / Music: Against The Current - The Fuss [OFFICIAL VIDEO]
演出者 / Performer: Against The Current
https://www.youtube.com/watch?v=y_Qsrt6c9_k

音樂 / Music: Mike Perry - The Ocean (ft. Shy Martin) [Lyrics CC]
演出者 / Performer: Mike Perry
https://www.youtube.com/watch?time_continue=17&v=mGQFZxIuURE&feature=emb_logo

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ocean current 在 Ocean current - Wikipedia 的相關結果

An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, ... ... <看更多>

ocean current 在 ocean current | Distribution, Causes, & Types | Britannica 的相關結果

Ocean current, stream made up of horizontal and vertical components of the circulation system of ocean waters that is produced by gravity, wind friction, ... ... <看更多>

ocean current 在 Ocean Currents | National Geographic Society 的相關結果

Ocean currents are the continuous, predictable, directional movement of seawater driven by gravity, wind (Coriolis Effect), and water ... ... <看更多>

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ocean current中文
Ocean current
Surface current
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Gulf Stream
Kuroshio Current
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Mean ocean circulation
搜尋相關連結

#1. Ocean current - Wikipedia

An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, ...

#2. ocean current | Distribution, Causes, & Types | Britannica

Ocean current, stream made up of horizontal and vertical components of the circulation system of ocean waters that is produced by gravity, wind friction, ...

#3. Ocean Currents | National Geographic Society

Ocean currents are the continuous, predictable, directional movement of seawater driven by gravity, wind (Coriolis Effect), and water ...

#4. What is a current? - NOAA's National Ocean Service

The term "current" describes the motion of the ocean. · 1. The rise and fall of the tides. · 2. Wind. · 3. Thermohaline circulation.

#5. Great ocean currents

> Ocean currents transport enormous amounts of heat around the world. This makes them one of the most important driving forces of climate. Because they respond ...

#6. Ocean circulation - Coastal Wiki

There are two main types of ocean currents: currents driven mainly by wind and currents mainly driven by density differences. Density depends on ...

#7. Ocean Currents | Earth Science - Lumen Learning

Wind that blows over the ocean water creates waves. It also creates surface currents, which are horizontal streams of water that can flow for thousands of ...

#8. Ocean Currents and Climate

1. Surface Currents · 2. Deep Water Currents · 1. Primary Forces--start the water moving · The primary forces are: · 2. · Solar heating cause water to expand. · Winds ...

#9. Ocean Currents: Motion in the Ocean

Ocean currents are continuous movements of water in the ocean that follow set paths, kind of like rivers in the ocean. They can be at the water's surface or go ...

#10. Ocean Surface Currents - University of Hawaii at Manoa

Ocean currents are produced by friction created by wind blowing over the water surface. However, the direction and speed of water currents do not match ...

#11. What Is the Gulf Stream? | NOAA SciJinks – All About Weather

The Gulf Stream is a strong ocean current that brings warm water from the Gulf of Mexico into the Atlantic Ocean. It extends all the way up the eastern ...

#12. Ocean circulation is changing, and we need to know why

The Atlantic meridional overturning circulation (AMOC) has spurred scientific interest and human imagination for decades. A complex and ...

#13. Ocean Currents - Shortcut method by to learn faster - Clear IAS

Currents of the Atlantic Ocean · To the north and south of the equator, there are two westward-moving currents, i.e., the North and the South Equatorial Currents ...

#14. Ocean Currents Images, Stock Photos & Vectors | Shutterstock

Find ocean currents stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection.

#15. Oceanography » Ocean Currents - Satellite Applications for ...

In the most general sense, a current is a region of water that moves more rapidly than its surroundings. There are surface ocean currents and deep ocean ...

#16. Ocean current - Polarpedia

An ocean current is a continuous, directed movement of seawater. Currents are on the ocean surface and in its depths, flowing both locally and globally. Oc.

#17. Ocean Currents: Various Types, Causes, Effects and Importance

Ocean currents are the movements of ocean water due to gravity, the rotating earth (Coriolis effect), water density, the sun, and wind.

#18. What is Ocean Circulation? | PO.DAAC / JPL / NASA

Ocean currents are continuous, directed movements of ocean water generated by the forces acting upon this mean flow, such as breaking waves, wind, Coriolis ...

#19. Ocean currents are slowing down due to climate change - CNN

The slowing down of ocean currents could have a devastating effect on ... Hear the story behind iconic image of minister's speech in the sea ...

#20. Ocean Currents and Climate Change

There is an intense interaction between oceans, atmosphere and ice. Changes in ocean circulation appear to have strongly amplified past climatic swings during ...

#21. Ocean Currents - an overview | ScienceDirect Topics

Climate change impacts are already occurring in coastal and marine ecosystems worldwide and include shifts in ocean current patterns, ecosystem changes (e.g., ...

#22. Ocean Current Diagrams – NCMI Information and Data Centre

Ocean currents in the Australian region – West. Source and support. Development of the animations and images has been possible with the support of CSIRO ...

#23. Ocean Currents - sea, depth, oceans, effects, temperature ...

Currents exist at all depths in the ocean; in some regions, two or more currents flow in different directions at different depths. Although the current system ...

#24. Why are Ocean Currents Important?

Ocean currents move warm and cold water, to polar regions and tropical regions influencing both weather and climate and changing the regions temperatures.

#25. Regional Ocean Current Forecast Operational System ...

Regional Ocean Current Forecast Operational System (ROCFORS) ... multi-scale oceanic processes around Taiwan on unstructured grids, Ocean Modelling, Vol.

#26. Ocean Current | Tethys

Turbines capable of harnessing the kinetic energy of ocean currents may be indistinct from other marine current turbines and function ...

#27. Ocean circulation

Ocean circulation is a key regulator of climate by storing and transporting heat, carbon, nutrients and freshwater all around the world .

#28. Ocean Surface Currents

A web-based ocean current reference site. Each current has important links, summary text detailing velocity and hydrographic observations, and plots such as ...

#29. Ocean current - ScienceDaily

An ocean current is any more or less permanent or continuous, directed movement of ocean water that flows in one of the Earth's oceans.

#30. Atlantic Ocean currents weaken, signalling big weather changes

The Atlantic Meridional Overturning Circulation (AMOC) is a large system of ocean currents which transports warm water from the tropics ...

#31. Atlantic Ocean circulation is the weakest in at ... - CBS News

New study finds evidence of an unprecedented slowdown in North Atlantic Ocean circulation, likely to due to human-caused climate change.

#32. Currents, Gyres, & Eddies - Woods Hole Oceanographic ...

Five permanent subtropical gyres can be found in the major ocean basins—two each in the Atlantic and Pacific Oceans and one in the Indian Ocean—turning ...

#33. Ocean currents news and latest updates - Phys.org

An ocean current is a continuous, directed movement of ocean water generated by the forces acting upon the water, such as the Earth's rotation, wind, ...

#34. Jennifer Verduin: How do ocean currents work? | TED Talk

#35. A Crucial System of Ocean Currents Is Faltering, Research ...

And climate scientists have been asking a crucial question: Whether this vast system, which includes the Gulf Stream, is slowing down because of ...

#36. Ocean Currents - 1st Edition - Elsevier

Purchase Ocean Currents - 1st Edition. Print Book & E-Book. ISBN 9780128160596, 9780128160602.

#37. Collapse of Atlantic Ocean currents could disrupt weather: study

A large system of ocean currents in the Atlantic has been disrupted due to human-caused climate change, scientists reported in a new study.

#38. Ocean Current That Keeps Europe Warm Is Weakening

These regions have an ocean current to thank for that warm(ish) weather. Known as the Atlantic Meridional Overturning Circulation (AMOC), ...

#39. Ocean Currents - Climate Science Investigations South ...

The surface ocean currents have a strong effect on Earth's climate. Areas near the equator receive more direct solar radiation than areas ...

#40. The major ocean currents, the red arrows illustrate warm water ...

Apart from tidal currents, more constant water movements are also found in the oceans. There is a dynamic relationship between those constant ocean movements ...

#41. Satellites reveal ocean currents are ... - The Conversation

Ocean eddies are an integral part of ocean circulation. They move warm and cold waters from one location to others. They mix heat, carbon, salt ...

#42. Global Ocean Currents | PBS LearningMedia

Observe simulated ocean flows at the surface and at 2000 meters below the surface with these visualizations from NASA. Global ocean circulation is a complex ...

#43. Ocean Currents Map: Visualize Our Oceans Movement

Ocean currents are like giant conveyor belts because they move large ... Let's take a look at ocean current maps to see ocean movement in ...

#44. Major ocean current could warm greatly, new study reveals

Ocean currents embody motion, snaking their way from the tropics to ... in the northern Pacific Ocean, the Kuroshio Current and Extension, ...

#45. earth :: a global map of wind, weather, and ocean conditions

See current wind, weather, ocean, and pollution conditions, as forecast by supercomputers, on an interactive animated map. Updated every three hours.

#46. Ocean Circulation and Currents | Encyclopedia.com

Ocean circulation is the large, connected system of water movements in the oceans. It involves both surface and deep currents. Surface currents are ...

#47. Understanding Surface Currents vs Deep Ocean Currents

Learn the difference between these types of ocean currents, why they're important, and how to track them.

#48. Sea temperatures and Currents - Bureau of Meteorology

Bureau Home > Marine & Ocean > Sea Temperature & Currents ... To view an Ocean Forecast please select an area on the map or use the Table below.

#49. Ocean Currents

How are Ocean Currents Formed? Winds. Wind is the primary force driving surface currents in the ocean. The sun heats the surface of the earth unevenly ...

#50. The South Indian Ocean Current in - AMS Journals

The South Indian Ocean Current ... to investigate (i) the hydrographic boundary between the subtropical gyre and the Antarctic Circumpolar Current (ACC), ...

#51. Climate Change is Weakening the Ocean Currents That ...

Since the end of the last ice age, a swirling system of ocean-spanning currents has churned consistently in the Atlantic, distributing heat ...

#52. Ocean Current

Ocean Current · Get Lost. · Skate. Make Friends. · The World is Yours · Surf. Make Friends. · InstaSnaps from Instagram ...

#53. IMOS-OceanCurrent

IMOS OceanCurrent. Surface Currents and Temperature. Up to date ocean information around Australia.

#54. Ocean Currents and Climate - American Institute of Physics

Oceanographers traced currents simply by throwing bottles into the ocean. ... Bit by bit, important features of the ocean circulation were explained.

#55. Atlantic Ocean circulation is not collapsing – but as it shifts ...

In that fictional tale the global oceanic current suddenly stops and New ... In the Atlantic Ocean's part of the global ocean circulation, ...

#56. Ocean currents - Atmosphere and climate - Edexcel - BBC

Heat is transferred by warm ocean currents, such as the North Atlantic Drift in the ... surface winds associated with the general atmospheric circulation.

#57. Atlantic Ocean circulation at weakest in a millennium, say ...

Decline in system underpinning Gulf Stream could lead to more extreme weather in Europe and higher sea levels on US east coast.

#58. A Major Ocean Current Could Be on The Verge of a ...

The Atlantic Meridional Overturning Circulation (AMOC) sea currents are vital in transporting heat from the tropics to the Northern ...

#59. Ocean currents' secrets

Indeed, in both cases, it is about an ongoing and cyclic move of water. In the case of ocean currents, we are facing seawater movements, a bit like some kind of ...

#60. Ocean Circulation | EARTH 103: Earth in the Future - Penn State

As this pattern of currents indicates, surface ocean circulation moves a lot of warm water to colder portions of the Earth; it also moves cold water back down ...

#61. The Major Ocean Currents of the World - Earth How

Ocean currents are like giant conveyor belts moving huge amounts of water all the time. Wind, temperature and salt gradients all influences ...

#62. Ocean current - ESKP

Ocean currents are considered to be the horizontal and vertical transport of water.

#63. What Happens If Atlantic Ocean Currents Cease To Churn?

Climate models suggest that a crucial ocean circulation pattern is already changing—a sign that we're heading toward climate tipping points.

#64. What is the Atlantic Meridional Overturning Circulation? - Met ...

The Atlantic Meridional Overturning Circulation (AMOC) is a large system of ocean currents that carry warm water from the tropics northwards into the North ...

#65. ocean current - Dictionary Definition : Vocabulary.com

the steady flow of surface ocean water in a prevailing direction.

#66. How Melting Arctic Ice Affects Ocean Currents

Worldwide, seawater moves in a pattern of currents known as thermohaline circulation, or the global ocean conveyor. The currents flow because of differences ...

#67. Ocean Currents - BrainPOP

... warm water from the tropics causes mild climates in Western Europe? What's a gyre? And the global conveyor belt? The answer's current, baby--ocean current.

#68. Remote Ocean Current Imaging System (ROCIS) | Fugro

ROCIS - the Remote Ocean Current Imaging System - is an aerial survey payload developed by Fugro and Areté Associates to measure surface ocean currents.

#69. Ocean Current - Clothing / Men - Amazon.com

Online shopping for Clothing, Shoes & Jewelry from a great selection of Shirts, T-Shirts & Tanks, Active, Fashion Hoodies & Sweatshirts, Swim, ...

#70. Ocean Currents Are Speeding Up, Driven by Faster Winds

And circulation also appears to be speeding up in other swaths of the Atlantic, Indian and Pacific oceans. There are still some parts of the ...

#71. NWS JetStream - Ocean Circulations

Driven by the wind and ocean currents, these toys continue to wash ashore during the next several years and some even drifted into the Atlantic Ocean.

#72. Part of Gulf Stream at risk as Atlantic Ocean currents weaken

The Atlantic Meridional Overturning Circulation (AMOC) is part of a large system of ocean currents, known as the Gulf Stream, that transports ...

#73. OCEAN CURRENTS UPSC - IAS Gyan

Ocean currents are the continuous, predictable, directional movement of seawater driven by gravity, wind (Coriolis Effect), and water density.

#74. Major Atlantic ocean current system may be approaching ...

'Worrying as well as a surprise', say scientists examining critical driver of ocean currents.

#75. Major Ocean Currents

Major Ocean Currents. Agulhas Current; Benguela Current; South Equatorial Current; Antarctic Circumpolar Current. Agulhas Current. This warm water current ...

#76. Oceanic Climate Variables

Surface Ocean Variables · Sea Surface Temperature · Ocean Color · Phytoplankton · Sea State · Sea Ice · Sea Surface Salinity · Sea Surface Height · Ocean Currents.

#77. Scientists see stronger evidence of slowing Atlantic Ocean ...

The Atlantic meridional overturning circulation, a system of currents, has long been considered capable of a sudden shutdown, ...

#78. Why the Atlantic Ocean current system is slowing down, and ...

The AMOC is a large system of ocean currents. It is the Atlantic branch of the ocean conveyor belt or Thermohaline circulation (THC), and ...

#79. Drilling into the seabed beneath Earth's most powerful ocean ...

"A better understanding of sea-air exchange in the Antarctic Circumpolar Current will enable more accurate forecasting of the rate and magnitude ...

#80. Patterns of Ocean Circulation - dummies

Environmental scientists study ocean circulation because, along with patterns of air movement in the atmosphere, the movement of water through the oceans ...

#81. Understanding Arctic Ocean Circulation: A Review of Ocean ...

Abstract The Arctic Ocean is a focal point of climate change, with ocean warming, freshening, sea-ice decline, and circulation that link to ...

#82. What does ocean current mean? - Definitions.net

An ocean current is a continuous, directed movement of ocean water generated by the forces acting upon this mean flow, such as breaking waves, wind, ...

#83. Ocean currents around New Zealand - Te Ara

To the south of New Zealand the Subantarctic Front and associated cold Antarctic Circumpolar Current (ACC) hug the deep ocean floor to the ...

#84. Opinion Satellites reveal ocean currents are getting stronger ...

Scientists already know the oceans are rapidly warming and sea levels are rising. But that's not all. Now, thanks to satellite observations, ...

#85. Learn more: How does ocean circulation affect the climate of ...

The reason for this is the system of global ocean currents, and specifically for the British Isles and north west Europe, the current known as the Gulf ...

#86. List of Ocean Currents of the World - Jagran Josh

Ocean Currents are made up of horizontal and vertical components of the circulation system of ocean waters that is produced by gravity, wind ...

#87. Observing the Flow of Ocean Currents and Circulation Using ...

Interests: ocean circulation; mesoscale and sub-basin scale eddies; currents and ... Over the last decade, the monitoring of ocean surface currents has been ...

#88. How Ocean Currents Move Pollution Around the World

As ocean current systems and patterns are sometimes hard to grasp, we will focus on two particular examples: the Great Pacific Garbage Patch ...

#89. Ocean Current | The Canadian Encyclopedia

Wind-Driven Currents. In the Atlantic and Pacific oceans north of the equator, the combined effects of the strong westerly winds (between 30 and ...

#90. Surface Ocean Currents - Windows to the Universe

Surface ocean currents form large circular patterns called gyres. Gyres flow clockwise in Northern Hemisphere oceans and counterclockwise in ...

#91. NTL 2018-G01 - Ocean Current Monitoring - August 7, 2018

Identify ocean current data for planning, designing, and operating mobile offshore drilling units (MODUs), permanent floating production ...

#92. Ocean Currents in Australia - Redmap

The main currents around Australia, pictured left, include the East Australian Current (EAC), Leeuwin and Antarctic circumpolar currents (Image: CSIRO). What ...

#93. Ocean Circulation & Stratification - Time Scavengers

More specifically, surface ocean currents are currents that move water in the upper layer (few hundred meters) of the water column, and can have localized ...

#94. Ocean Current System – That Influences Weather Patterns ...

The AMOC is the key circulation system of the Atlantic Ocean. It moves heat from the Tropical region to the Northern hemisphere by transporting ...

#95. Atlantic Ocean Current System: AMOC - Drishti IAS

Ocean Currents · About: Ocean currents are located at the ocean surface and in deep water below 300 meters. They can move water horizontally and ...

#96. Major Atlantic Current May Be On The Verge Of Collapse ...

A major planetary ocean current is in peril, a study has found. getty. Key Facts. The study, which appeared in the journal Nature Climate Change ...

#97. Scientists Discover New Ocean Current off Madagascar - Eos

The warm and salty Southwest Madagascar Coastal Current influences upwelling that supports rich marine ecosystems along the southern coast.

#98. Drift in ocean currents impacts intergenerational microbial ...

Our current understanding of how marine biota are adapted to magnitudes, trends, and temporal patterns of variability in sea-surface ...