Intercomparison of IRS-P4-MSMR derived geophysical products with DMSP-SSM/I and TRMM-TMI finished products

In this paper, MSMR geophysical products like Integrated Water Vapour (IWV), Ocean Surface Wind Speed (OWS) and Cloud Liquid Water (CLW) in different grids of 50, 75 and 150 kms are compared with similar products available from other satellites like DMSP-SSM/I and TRMM- TMI. MSMR derived IWV, OWS an...

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Bibliographic Details
Published in:Academy Proceedings in Earth and Planetary Sciences 2002-09, Vol.111 (3), p.247-256
Main Authors: VARMA, A. K, GAIROLA, R. M, MATHUR, A. K, GOHIL, B. S, AGARWAL, Vijay K
Format: Article
Language:English
Subjects:
Comparative studies
Data analysis
Earth, ocean, space
Exact sciences and technology
External geophysics
Geophysics
Geophysics. Techniques, methods, instrumentation and models
Intercomparison
Marine
Ocean surface
Special Sensor Microwave Imager
Surface wind
Water
Water vapor
Water vapour
Wind speed
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Summary:In this paper, MSMR geophysical products like Integrated Water Vapour (IWV), Ocean Surface Wind Speed (OWS) and Cloud Liquid Water (CLW) in different grids of 50, 75 and 150 kms are compared with similar products available from other satellites like DMSP-SSM/I and TRMM- TMI. MSMR derived IWV, OWS and CLW compare well with SSM/I and TMI finished products. Comparison of MSMR derived CLW with that derived from TMI and SSM/I is relatively in less agreement. This is possibly due to the use of 37 GHz in SSM/I and TMI that is highly sensitive to CLW, while 37 GHz channels are not available on MSMR. Monthly comparison of MSMR geo- physical products with those from TMI is all carried out for climatological purpose. The monthly comparisons were much better compared to instantaneous comparisons. In this paper, details of the data analysis and comparison results are presented. The usefulness of the MSMR vis-a-vis other sensors is also discussed.
ISSN:0253-4126
0973-774X
DOI:10.1007/BF02701971