caa a22 4500 469052473 CHVBK 20180323132834.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF01026015 doi (NATIONALLICENCE)springer-10.1007/BF01026015 An improvement in cumulus parameterization by invoking outgoing longwave radiation [Elektronische Daten] [M. Wai, T. Krishnamurti] Summary: The Kuo-type cumulus parameterization and rainfall rate scheme is extended by including the outgoing longwave radiation (OLR), the local time rate of change of OLR, and the horizontal Laplacian of OLR to include the additional source of mesoscale moisture supply. The extended scheme remains simple and efficient. A series of 5-day forecasts of the 1979 monsoon for the tropical belt between the Arabian Sea and the western Pacific Ocean show improvement in the 3-day forecast in the daily accumulated precipitation in both the amount and location. Further RMS error analyses indicate that using OLR and the Laplacian of OLR also produces a significant improvement in a 3-day forecast. Additional tests of the extended scheme for the 1987 and 1988 monsoons produced consistent and characteristic areal rainfall rates in the tropics. The improvement in the "OLR model” forecasts is attributed to the improved skill of OLR forecast in the forecast model as the RMS errors for 5 consecutive days in the 6 experimental forecasts are smaller than those of the 3 control forecasts. Springer-Verlag, 1992 Wai M. Department of Meteorology, Florida State University, 32306, Tallahassee, Florida, USA aut Krishnamurti T. Department of Meteorology, Florida State University, 32306, Tallahassee, Florida, USA aut Meteorology and Atmospheric Physics Springer-Verlag 50/4(1992-12-01), 175-187 0177-7971 50:4<175 1992 50 703 https://doi.org/10.1007/BF01026015 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01026015 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wai M. Department of Meteorology, Florida State University, 32306, Tallahassee, Florida, USA aut NATIONALLICENCE 700 1- Krishnamurti T. Department of Meteorology, Florida State University, 32306, Tallahassee, Florida, USA aut NATIONALLICENCE 773 0- Meteorology and Atmospheric Physics Springer-Verlag 50/4(1992-12-01), 175-187 0177-7971 50:4<175 1992 50 703 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer