The use of TOVS cloud-cleared radiances in the NCEP SSI analysis system

被引:0
作者
Derber, JC
Wu, WS
机构
[1] Natl Ctr Environm Predict, Environm Modeling Ctr, Washington, DC 20233 USA
[2] Gen Sci Corp, Laurel, MD USA
关键词
D O I
10.1175/1520-0493(1998)126<2287:TUOTCC>2.0.CO;2
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
With improved assimilation techniques, it is now possible to directly assimilate cloud-cleared radiances, rather than temperature and moisture retrievals, in objective analyses. The direct use of the cloud-cleared radiances became the operational technique for using satellite sounding data at the National Centers for Environmental Prediction (NCEP) in October 1995. The methodology for using the data (including bias correction, ozone analysis, skin temperature analysis, and quality control) are described in this paper. The impact of the direct use of the radiances compared to the previously operational use of satellite sounding data shows considerable improvement in NCEP's forecast skill, especially in the Southern Hemisphere. It is anticipated that additional positive impacts will occur with application of the technique to other remotely sensed data.
引用
收藏
页码:2287 / 2299
页数:13
相关论文
共 28 条
[1]  
ANDERSSON E, 1991, MON WEATHER REV, V119, P1851, DOI 10.1175/1520-0493(1991)119<1851:GOSEOO>2.0.CO
[2]  
2
[3]   USE OF CLOUD-CLEARED RADIANCES IN 3-DIMENSIONAL 4-DIMENSIONAL VARIATIONAL DATA ASSIMILATION [J].
ANDERSSON, E ;
PAILLEUX, J ;
THEPAUT, JN ;
EYRE, JR ;
MCNALLY, AP ;
KELLY, GA ;
COURTIER, P .
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 1994, 120 (517) :627-653
[4]  
BAKER W, 1995, NWS TECH PROCEDURES, V422
[5]  
Caplan P, 1997, WEATHER FORECAST, V12, P581, DOI 10.1175/1520-0434(1997)012<0581:CTTNOM>2.0.CO
[6]  
2
[7]  
COURTIER P, 1993, 194 ECMWF
[8]  
COX SJ, 1994, 85 UKMO
[9]  
DERBER JC, 1991, WEATHER FORECAST, V6, P538, DOI 10.1175/1520-0434(1991)006<0538:TNGOAS>2.0.CO
[10]  
2