File:Sediment in the Gulf of Mexico (2) edit.jpg
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描述Sediment in the Gulf of Mexico (2) edit.jpg |
English: Much of the dirt that colours the water is likely re-suspended sediment dredged up from the sea floor in shallow waters. The tan-green sediment-coloured water transitions to clearer dark blue water near the edge of the continental shelf where the water becomes deeper. The ocean turbulence that brought the sediment to the surface is readily evident in the textured waves and eddies within the tan and green waters. Tropical Storm Ida had come ashore over Alabama and Florida, immediately east of the area shown here, a few hours before the image was acquired. The storm’s wind and waves may have churned up waters farther west. A second source of sediment is visible along the shore. Many rivers, including the Mississippi River, drain into the Gulf of Mexico in this region. The river plumes are dark brown that fade to tan and green as the sediment dissipates. Rivers throughout the region ran high, likely carrying more sediment than usual into the Gulf. The rivers also carry nutrients like iron from soil and nitrogen from fertilizers. These nutrients fuel the growth of phytoplankton, tiny, plant-like organisms that grow in the ocean surface waters. Phytoplankton blooms colour the ocean blue and green and may be contributing to the colour seen here. |
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來源 |
Sediment_in_the_Gulf_of_Mexico_(2).jpg, originally from NASA Earth Observatory |
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其他版本 |
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這是一張修飾過的圖片,即本圖片是用軟體修改過後的版本,修改的方式或內容有:dark water areas anisotropically blurred to hide diagonal stripe artifacts in original image。原版圖片來源:Sediment in the Gulf of Mexico (2).jpg。修改者:Ilmari Karonen。
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授權條款
[編輯]Public domainPublic domainfalsefalse |
本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ||
警告:
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Public domainPublic domainfalsefalse |
此作品基於公有領域中的作品。它已經過數字增強和/或修改。該衍生作品已(或特此)由其作者Ilmari Karonen發布到公有領域。此授權條款在全世界均適用。
這可能在某些國家不合法,如果是的話: |
原始上傳日誌
[編輯]This image is a derivative work of the following images:
- File:Sediment_in_the_Gulf_of_Mexico_(2).jpg licensed with PD-USGov-NASA, PD-USGov-NASA/pt
- 2009-11-13T15:04:10Z Originalwana 2800x2000 (4697083 Bytes) {{Information |Description={{en|1=Much of the dirt that colours the water is likely re-suspended sediment dredged up from the sea floor in shallow waters. The tan-green sediment-coloured water transitions to clearer dark blue
Uploaded with derivativeFX
註解 InfoField | 該圖片含有註解:在維基媒體共享資源上查看註解 |
檔案歷史
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日期/時間 | 縮圖 | 尺寸 | 用戶 | 備註 | |
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目前 | 2010年1月9日 (六) 20:21 | 2,800 × 2,000(4.88 MB) | Ilmari Karonen(對話 | 貢獻) | try adding back some artificial noise to reduce color banding during compression | |
2010年1月9日 (六) 19:51 | 2,800 × 2,000(4.67 MB) | Ilmari Karonen(對話 | 貢獻) | heavier blurring to get rid of JPEG compression noise; loses a bit of fine detail (hopelessly mixed with the noise) near the shore, but looks a lot better | ||
2010年1月9日 (六) 19:18 | 2,800 × 2,000(4.63 MB) | Ilmari Karonen(對話 | 貢獻) | {{Information |Description={{en|1=Much of the dirt that colours the water is likely re-suspended sediment dredged up from the sea floor in shallow waters. The tan-green sediment-coloured water transitions to clearer dark blue water near the edge of the co |
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方位 | 標準 |
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水平解析度 | 72 dpi |
垂直解析度 | 72 dpi |
使用軟體 | GIMP 2.6.7 |
檔案修改日期時間 | 2010年1月9日 (六) 22:18 |
色彩空間 | 顏色未校準 |