caa a22 4500 469084448 CHVBK 20180323133000.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02677075 doi (NATIONALLICENCE)springer-10.1007/BF02677075 Some experiments with multivariate objective analysis scheme of heights and winds using optimum interpolation [Elektronische Daten] [S. Sinha, S. Narkhedkar, D. Talwalkar, S. Rajamani] A two-dimensional, multitvariate objective analysis scheme for simultaneous analysis of geopotential height and wind fields has been developed over Indian and adjoining region for use in numerical weather prediction. The height-height correlations calculated using daily data of four July months (1976-1979), are used to derive the other autocorrelations and cross-correlations assuming geostropic relationship. A Gaussian function is used to model the autocorrelation function. Since the scheme is multivariate the regression coefficients (weights) are matrix. Near the equator, the geostrophic approximation relating mass and wind is decoupled in a way similar to Bergman (1979). The objective analyses were made over Indian and adjoining region for 850, 700, 500, 300 and 200 hPa levels for the period from 4 July to 8 July 1979, 12 GMT. The analyses obtained using multivariate optimum interpolation scheme depict the synoptic situations satisfactorily. The analyses were also compared with the FGGE analyses (from ECMWF) and also with the station observations by computing the root mean square (RMS) errors and the RMS errors are comparable with those obtained in other similar studies. Advances in Atmospheric Sciences, 1992 Sinha S. Indian Institute of Tropical Meteorology, 411008, Pune, India aut Narkhedkar S. Indian Institute of Tropical Meteorology, 411008, Pune, India aut Talwalkar D. Indian Institute of Tropical Meteorology, 411008, Pune, India aut Rajamani S. Indian Institute of Tropical Meteorology, 411008, Pune, India aut Advances in Atmospheric Sciences Science Press 9/4(1992-12-01), 431-440 0256-1530 9:4<431 1992 9 376 https://doi.org/10.1007/BF02677075 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02677075 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sinha S. Indian Institute of Tropical Meteorology, 411008, Pune, India aut NATIONALLICENCE 700 1- Narkhedkar S. Indian Institute of Tropical Meteorology, 411008, Pune, India aut NATIONALLICENCE 700 1- Talwalkar D. Indian Institute of Tropical Meteorology, 411008, Pune, India aut NATIONALLICENCE 700 1- Rajamani S. Indian Institute of Tropical Meteorology, 411008, Pune, India aut NATIONALLICENCE 773 0- Advances in Atmospheric Sciences Science Press 9/4(1992-12-01), 431-440 0256-1530 9:4<431 1992 9 376 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer