Statistical Characteristics of the Global Surface Current Speeds Obtained From Satellite Altimetry and Scatterometer Data

被引:20
作者
Chu, Peter C. [1 ]
机构
[1] USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA
关键词
Altimetry; probability; satellites; scattering; sea surface; stochastic processes; REGIONAL OCEAN MODELS; STOCHASTIC STABILITY;
D O I
10.1109/JSTARS.2009.2014474
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];
摘要
Near-real time ocean surface currents derived from satellite altimeter (JASON-1, GFO, ENVISAT) and scatterometer (QSCAT) data on 1 degrees x 1 degrees resolution for world oceans (60 degrees S to 60 degrees N) are available online as "Ocean Surface Current Analyses-Real Time (OSCAR)." The probability distribution function (PDF) of the current speeds (w), constructed from global OSCAR data from 1992 to 2008, satisfies the two-parameter Weibull distribution reasonably well, and such a PDF has little seasonal and interannual variations. Knowledge on PDF of w will improve the ensemble horizontal flux calculation, which contributes to the climate studies.
引用
收藏
页码:27 / 32
页数:6
相关论文
共 9 条
[1]
[Anonymous], 1993, Continuous Univariate Distributions, DOI DOI 10.1016/0167-9473(96)90015-8
[2]
Probability distribution function of the upper equatorial Pacific current speeds [J].
Chu, Peter C. .
GEOPHYSICAL RESEARCH LETTERS, 2008, 35 (12)
[3]
Applications of Kalman filters based on non-linear functions to numerical weather predictions [J].
Galanis, G. ;
Louka, P. ;
Katsafados, P. ;
Pytharoulis, I. ;
Kallos, G. .
ANNALES GEOPHYSICAE, 2006, 24 (10) :2451-2460
[4]
Gill A. E., 1986, ATMOSPHERE OCEAN DYN, V1
[5]
On stochastic stability of regional ocean models with uncertainty in wind forcing [J].
Ivanov, L. M. ;
Chu, P. C. .
NONLINEAR PROCESSES IN GEOPHYSICS, 2007, 14 (05) :655-670
[6]
On stochastic stability of regional ocean models to finite-amplitude perturbations of initial conditions [J].
Ivanov, Leonid M. ;
Chu, Peter C. .
DYNAMICS OF ATMOSPHERES AND OCEANS, 2007, 43 (3-4) :199-225
[7]
Lozano C.J., 1996, Modern Approaches to Data Assimilation in Ocean Modelling, V61, P413
[9]
ON GENERATION BY WINDS OF INERTIAL WAVES IN OCEAN [J].
POLLARD, RT .
DEEP-SEA RESEARCH, 1970, 17 (04) :795-&