التفاصيل البيبلوغرافية
| العنوان: |
Improving wind-based upwelling estimates off the west coasts of North and South America |
| المؤلفون: |
Pickett, Mark H. |
| المساهمون: |
Schwing, Franklin B., Oceanography |
| بيانات النشر: |
Monterey, California. Naval Postgraduate School |
| سنة النشر: |
2003 |
| المجموعة: |
Naval Postgraduate School: Calhoun |
| مصطلحات موضوعية: |
Upwelling, California Current, Peru/Chile Current, QuikSCAT, Wind-stress curl, Upwelling Index, Ekman transport, Ekman pumping, Meteorological satellites |
| الوصف: |
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. ; Approved for public release; distribution is unlimited. ; Lieutenant Commander, National Oceanic and Atmospheric Administration ; http://archive.org/details/improvingwindbas109459830 |
| نوع الوثيقة: |
other/unknown material |
| وصف الملف: |
xx, 110 p. : ill. (some col.); 28 cm.; application/pdf |
| اللغة: |
unknown |
| Relation: |
https://hdl.handle.net/10945/9830 |
| الاتاحة: |
https://hdl.handle.net/10945/9830 |
| Rights: |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
| رقم الانضمام: |
edsbas.AEBF54E1 |
| قاعدة البيانات: |
BASE |