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

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Abstract

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 TRMMTMI. 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 geophysical 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-à-vis other sensors is also discussed.

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Authors and Affiliations

  1. Oceanic Sciences Division, Remote Sensing Applications Area, Space Applications Centre (ISRO), 380 015, Ahmedabad, India

    A. K. Varma, R. M. Gairola, A. K. Mathur, B. S. Gohil & Vijay K. Agarwal

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  1. A. K. Varma
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  2. R. M. Gairola
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  3. A. K. Mathur
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  4. B. S. Gohil
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  5. Vijay K. Agarwal
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Varma, A.K., Gairola, R.M., Mathur, A.K. et al. Intercomparison of IRS-P4-MSMR derived geophysical products with DMSP-SSM/I and TRMM-TMI finished products. J Earth Syst Sci 111, 247–256 (2002). https://doi.org/10.1007/BF02701971

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