FN Archimer Export Format
PT J
TI GPM-Derived Climatology of Attenuation Due to Clouds and Precipitation at Ka-Band
BT 
AF Battaglia, Alessandro
   Mroz, Kamil
   Watters, Daniel
   ARDHUIN, Fabrice
AS 1:1;2:2;3:3;4:4;
FF 1:;2:;3:;4:;
C1 Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, U.K., and also with the National Centre for Earth Observation, Leicester LE1 7RH, U.K
   National Centre for Earth Observation, Leicester LE1 7RH, U.K.
   Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, U.K.
   Ifremer Centre de Bretagne, Laboratoire d'Océanographie Physique et Spatiale, 29280 Plouzané, France.
C2 UNIV LEICESTER, UK
   NCEO, UK
   UNIV LEICESTER, UK
   CNRS, FRANCE
UM LOPS
IN WOS Cotutelle UMR
   copubli-europe
IF 5.6
TC 10
UR https://archimer.ifremer.fr/doc/00600/71196/69562.pdf
LA English
DT Article
DE ;Attenuation;cloud and precipitation;Ka-band;radar
AB Attenuation from clouds and precipitation hinders the use of Ka-band in SARs, radar altimeters and in satellite link communications. The NASA-JAXA Global Precipitation Measurement (GPM) mission, with its core satellite payload including a dual-frequency (13.6 and 35.5 GHz) radar and a multifrequency passive microwave radiometer, offers an unprecedented opportunity for better quantifying such attenuation effects. Based on four years of GPM products, this article presents a global climatology of Ka-band attenuation caused by clouds and precipitation and analyses the impact of the precipitation diurnal cycle. As expected, regions of high attenuation mirror precipitation patterns. Clouds and precipitation cause two-way attenuation at 35.5 GHz in excess of 3 dB about 1.5% of the time in the regions below 65$°, peaking at as much as 10% in the tropical rain belt and the South Pacific Convergence Zone and at circa 5% along the storm tracks of the North Atlantic and Pacific Oceans. Confirming previous findings, the diurnal cycle is particularly strong over the land and during the summer period; while over the ocean, the diurnal cycle is generally weaker some coherent features emerge in the tropical oceans and in the northern hemisphere. Results are useful for estimating data loss from (sun-synchronous) satellite adopting active instruments/links at a frequency close to 35 GHz. 
PY 2020
PD MAR
SO Ieee Transactions On Geoscience And Remote Sensing
SN 0196-2892
PU Institute of Electrical and Electronics Engineers (IEEE)
VL 58
IS 3
UT 000519598700022
BP 1812
EP 1820
DI 10.1109/TGRS.2019.2949052
ID 71196
ER

EF