采用一种技术从孟加拉国的卫星数据估计降雨量

Sri Lankan Journal of Physics Pub Date : 2003-12-05 DOI:10.4038/SLJP.V4I0.188

Md. Nazrul Islam, Cm Wahid

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引用次数: 2

摘要

st1\:*{behavior:url(# ieoui)} /*样式定义*/表。mso-style-name:"Table Normal";mso-tstyle-rowband-size: 0;mso-tstyle-colband-size: 0;mso-style-noshow:是的;mso-style-parent:“”;Mso-padding-alt:0cm 5.4pt;mso-para-margin: 0厘米;mso-para-margin-bottom: .0001pt;mso-pagination: widow-orphan;字体大小:10.0分;font-family:宋体;mso-ansi-language: # 0400;mso-fareast-language: # 0400;为了从卫星数据估计降雨量，计算了孟加拉国东北部(Sylhet)的GMS(地球同步气象卫星)降水指数(GPI)。GPI是用地面雨量计校准的。结果发现，个别台站的GPI值偏低，即雨量过高。然后将GPI调整为调整后的GMS降水指数(Adjusted GMS Precipitation Index, AGPI)。利用AGPI对卫星降水进行估算，结果令人满意。正如预期的那样，降雨量约为AGPI的68%。doi:10.4038/sljp.v4i0.188中国物理学报，Vol.4 (2003) 1-9

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Adaptation of a technique to estimate rainfall from satellite data in Bangladesh

st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} In order to estimate rainfall from satellite data GMS (Geo-stationary Meteorological Satellite) Precipitation Index (GPI) was calculated for northeastern part (Sylhet) of Bangladesh. GPI was calibrated with ground-based raingauge rainfall. As was found, GPI underestimated i.e., raingauge rainfall overestimated for a few stations. Then GPI was adapted as Adjusted GMS Precipitation Index (AGPI). Satisfactory results were found using AGPI in estimating rainfall from satellite data. As expected, the raingauge rainfall was found about 68% of AGPI. doi:10.4038/sljp.v4i0.188 Sri Lankan Journal of Physics, Vol.4 (2003) 1-9

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Sri Lankan Journal of Physics

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