DATA
Access to our data sets here.
About scatterometer.
| QuikSCAT Ocean Winds |
At near-real-time, twice-daily maps of ocean surface
winds over global oceans, derived from the observations
by the scatterometer SeaWinds on space mission
QuikSCAT, of the National Aeronautics and Space
Administration (NASA).
Get the real-time QuikSCAT data.
|
| NSCAT Ocean Winds |
More than 9 months of surface wind field, stress, and curl of stress derived from observations of the
NASA Scatterometer (NSCAT),starting September 15, 1996, at 0.5 degree latitude by 0.5 degree
longitude resolution, every 12 hours, are available on-line. The NSCAT winds are
objectively interplated by successive correction and the methodology is described in W.T. Liu,
W. Tang and P.S. Polito, 1998: NASA Scatterometert provides global ocean-surface wind fields
with more structures than numerical weather prediction
(Geophys. Res. Lett., Vol 25, No. 6, 761-764). The NSCAT
data sets was produced by Wenqing Tang and W. Timothy Liu with
supports from the NASA Earth Observing System (EOS) Interdiscipline Science Program, the
NASA Scatterometer (NSCAT) Project, and the NASA/NOAA Enhanced Data Set Program. Another
set of NSCAT gridded data using Correlation-Based
Interpolation (CBI) method is also available (Polito, P.S., W.T. Liu, and W. Tang, 2000:
Correlation-based interpolation of NSCAT wind data. J. Atmos. and Ocean Tech. 17, 1016-1026.) |
| ERS Ocean Winds |
Ocean surface winds from ERS are also available upon request, starting from 1992 to 1996, at 1
degree latitude by 1 degree longitude resolution, every 12 hours. For the gridding method, please
refer the article by Tang and Liu
[
JPL Publication 96-19,1996 (PDF file)].
The ERS data set was produced by Wenqing Tang and W. Timothy Liu with
supports from the NASA Earth Observing System (EOS) Interdiscipline Science Program, the
NASA Scatterometer (NSCAT) Project, and the NASA/NOAA Enhanced Data Set Program. |
| Hourly NDBC Equivalent Neutral Wind |
All data between 9/96 and 10/96 accessible to us are converted to equivalent neutral winds
(ENW) at both 10 m and 19.5 m height. There are different kinds of buoy mixed together, not all
of which are suitable for evaluating NSCAT winds; see station identifier. The definition and
method of computing ENW is described in Liu and Tang
[
JPL Publication 96-17, 1996 (PDF file)].
Conditions under which ENW is derived are indicated by Flag. |
| Hourly TAO Equivalent Neutral Wind |
Hourly TAO buoy data coincident with NSCAT observations provided through the courtesy of
Mike Caruso are converted to equivalent neutral winds (ENW) at both 10 m and 19.5 reference
height. The definition and method of computing ENW are described by Liu and Tang
[
JPL Publication 96-17, 1996 (PDF file)],
the text of which is displayed in this homepage. Conditions
under which ENW is derived are indicated by a Flag (see definition below). The colocated TAO
buoy and NSCAT data are accessible through Mike Caruso's homepage
http://rsag.whoi.edu/nscat/tao/nscat_tao.html. The TAO buoys and instrument were deployed and
the data collected by the NOAA Pacific Marine Environmental Laboratory. |
| Equivalent Neutral Wind Calculation |
Computer Codes and hardcopy of the paper Equivalent Neutral Wind by
W. Timothy Liu and Wenqing Tang is published by
JPL Publication 96-17, August 1, 1996.(PDF file)
Get the ascii code (LKB code) here. |
| Moisture Transport |
The moisture transport integrated through the depth of the atmosphere
over the ocean is estimated from spaceborne observations of QuikSCAT, SSM/I,
MISR, and geostationary satellites using support vector regression. The methodology
and validation are described in
Xie et al. (2008).
Some applications are shown by
Liu and Xie (2008).
Access data. |
