caa a22 4500 469084669 CHVBK 20180323133001.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1007/BF02657514 doi (NATIONALLICENCE)springer-10.1007/BF02657514 Construction of vertical wind profile from satellite-derived winds for objective analysis of wind field [Elektronische Daten] [P. Mahajan, D. Talwalkar, S. Nair, S. Rajamani] During summer Monex-79, a variety of observing systems viz. research ships, research aircrafts, constant pressure balloons and geostationary satellite etc. were deployed, besides the regular conventional observations. The purpose of these additional systems was to make the best possible data for the studies on various aspects of monsoon circulation. The present study is aimed at the construction of vertical wind profile using cloud motion vectors obtained from GOES (I-O) satellite and to examine whether the constructed wind profiles improves the representation of the monsoon system, flow pattern etc. in the objective analysis. For this purpose, climatological normals of the wind field are considered as the initial guess and the objective analyses of the wind field are made with, first using only data from conventional observations over land areas, subsequently including the constructed winds from cloud motion vectors. These analyses are then compared with the standard analyses of wind field obtained from Quick Look Atlas by T. N. Krishnamurti et al. (1979). It is inferred that satellite estimated mean wind profiles show good agreement with the mean wind profiles of the research ships with RMS errors less than 5 mps below 500 hPa and less than 8 mps above 500 hPa. It is further inferred that the inclusion of constructed winds shows a positive impact on the objective analysis and improvement is seen to be more marked in the data-sparse region of the Arabian sea. Analyses which include the constructed winds show better agreement with the standard analysis, than the analyses obtained using only conventional winds. Thus, results of our study suggest that the wind profiles constructed using cloud motion vectors are of potential use in objective analysis to depict the major circulation features over the Indian region. Advances in Atmospheric Sciences, 1992 Mahajan P. Indian Institute of Tropical Meteorology, 411008, Pune aut Talwalkar D. Indian Institute of Tropical Meteorology, 411008, Pune aut Nair S. Indian Institute of Tropical Meteorology, 411008, Pune aut Rajamani S. Indian Institute of Tropical Meteorology, 411008, Pune aut Advances in Atmospheric Sciences Science Press 9/2(1992-06-01), 237-246 0256-1530 9:2<237 1992 9 376 https://doi.org/10.1007/BF02657514 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02657514 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mahajan P. Indian Institute of Tropical Meteorology, 411008, Pune aut NATIONALLICENCE 700 1- Talwalkar D. Indian Institute of Tropical Meteorology, 411008, Pune aut NATIONALLICENCE 700 1- Nair S. Indian Institute of Tropical Meteorology, 411008, Pune aut NATIONALLICENCE 700 1- Rajamani S. Indian Institute of Tropical Meteorology, 411008, Pune aut NATIONALLICENCE 773 0- Advances in Atmospheric Sciences Science Press 9/2(1992-06-01), 237-246 0256-1530 9:2<237 1992 9 376 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer