Impact of wind/wind-stress field in the North Pacific constructed by ADEOS/NSCAT data |
| |
| Authors: | Kunio Kutsuwada |
| |
| Institution: | (1) School of Marine Science and Technology, Tokai University, 3-20-1, Orido, 424-8610 Shimizu, Shizuoka, Japan |
| |
| Abstract: | Data sets of surface wind and wind-stress fields in the North Pacific from September 1996 to June 1997 have been constructed
using NASA Scatterometer (NSCAT) data on-board ADEOS to investigate their variability and implications for the wind-driven
oceanic circulation. Using a weighting function decreasing with the distance between each grid and data points, and of Gaussian
type for time, daily, 10-day and monthly averages are calculated for each 1°×1° grid. Products are validated by comparison
with those calculated from in-situ measurement data at oceanic buoys around Japan (JMA) and in the equatorial area (TAO).
The RMS differences for wind direction and speed never exceed 20° and 2 ms−1, respectively, for the TAO buyos. This does not hold for data taken by JMA buoys, suggesting that the reliability in the
mid-latitudes is not good for time averages shorter than several days. Zonal integration of the Sverdrup transport in a zone
of 28°–30°N calculated from the monthly-mean products ranges between 25 and 60×106 m3s−1 (Sv) around its mean of 38 Sv. These are not so different from the Kuroshio transport values calculated from oceanic measurements. |
| |
| Keywords: | ADEOS/NSCAT wind-stress North Pacific scatterometer validation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
