title: Validation of the TRMM Multi Satellite Rainfall Product 3B42 and estimation of scavenging coefficients for (131)I and (137)Cs using TRMM 3B42 rainfall data.
abstract: The TRMM rainfall product 3B42 is compared with rain gauge observations for Kaiga, India on monthly and seasonal time scales. This comparison is carried out for the years 2004-2007 spanning four monsoon seasons. A good correlation is obtained between the two data sets however; magnitude wise, the cumulative precipitation of the satellite product on monthly and seasonal time scales is deficient by almost 33-40% as compared to the rain gauge data. The satellite product is also compared with APHRODITE's Monsoon Asia data set on the same time scales. This comparison indicates a much better agreement since both these data sets represent an average precipitation over the same area. The scavenging coefficients for (131)I and (137)Cs are estimated using TRMM 3B42, rain gauge and APHRODITE data. The values obtained using TRMM 3B42 rainfall data compare very well with those obtained using rain gauge and APHRODITE data.
authors.affiliation: Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. Electronic address: roopa@barc.gov.in.
authors.forename: R
authors.initials: R
authors.lastname: Shrivastava
authors.affiliation: Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi 110 016, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Dash
authors.affiliation: Environmental Survey Laboratory, Health Physics Division, Kaiga Generating Station, Kaiga 581 400, India.
authors.forename: M N
authors.initials: MN
authors.lastname: Hegde
authors.affiliation: Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
authors.forename: K S
authors.initials: KS
authors.lastname: Pradeepkumar
authors.affiliation: Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai 400 085, India.
authors.forename: D N
authors.initials: DN
authors.lastname: Sharma
mesh_terms: D002586:Cesium / Q000032:analysis*; D002588:Cesium Radioisotopes / Q000032:analysis; D007194:India; D007455:Iodine / Q000032:analysis*; D007457:Iodine Radioisotopes / Q000032:analysis; D011834:Radiation Monitoring / Q000379:methods*; D011891:Rain; D058998:Remote Sensing Technology / Q000379:methods*; D018531:Spacecraft
chemical_list: D002588:Cesium Radioisotopes; D007457:Iodine Radioisotopes; D002586:Cesium; D007455:Iodine
keywords: APHRODITE; Scavenging coefficient; TRMM