File:Improving wind-based upwelling estimates off the west coasts of North and South America (IA improvingwindbas109459830).pdf
Original file (1,275 × 1,650 pixels, file size: 5.77 MB, MIME type: application/pdf, 133 pages)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
Improving wind-based upwelling estimates off the west coasts of North and South America
(   ) |
||
|---|---|---|
| Author |
Pickett, Mark H. |
 |
| Title |
Improving wind-based upwelling estimates off the west coasts of North and South America |
|
| Publisher |
Monterey, California. Naval Postgraduate School |
|
| Description |
Weekly upwelling was estimated at 25 sites off the North and South American west coasts from August 1999 to December 2001 using geostrophically derived winds, model-derived winds from the U.S. Navy's global atmospheric (NOGAPS) model, and QuikSCAT satellite-measured winds. Satellite-measured winds, verified with 15 U.S. west coast buoys, were within 1.3 m s-1 and 26ﾰ RMS. Upwelling estimates derived from geostrophic winds using the Pacific Fisheries Environmental Laboratory (PFEL) technique were compared to those derived from both satellite-measured winds and modelderived winds. Upwelling estimates from model-derived winds agreed with satellite-based estimates at all 14 North American sites and 9 of 11 South American sites. Estimates from geostrophic winds agreed with satellite-based estimates at 12 of 14 North American sites and 7 of 11 South American sites. These comparisons showed that upwelling estimates based on the Navy's global model winds were accurate in more regions than those based on geostrophic winds. A fine-scale upwelling investigation using the Navy's high-resolution atmospheric model (COAMPS) revealed narrow near-shore bands of strong wind-stress and wind-stress-curl missed in the above upwelling estimates. Improvements in the depiction of coastal upwelling will require wind data and upwelling estimates with at least a 10 km resolution. Subjects: Meteorological satellites.; Upwelling; California Current; Peru/Chile Current; QuikSCAT; Wind-stress curl; Upwelling Index; Ekman transport; Ekman pumping |
|
| Language | English | |
| Publication date | December 2003 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
|
| Accession number |
improvingwindbas109459830 |
|
| Source | ||
| Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted. | |
Licensing
|
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
|
 |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:45, 22 July 2020 |  | 1,275 × 1,650, 133 pages (5.77 MB) | Fæ | FEDLINK - United States Federal Collection improvingwindbas109459830 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #18606) |