沙漠与绿洲气象
沙漠與綠洲氣象
사막여록주기상
DESERT AND OASIS METEOROLOGY
2014年
6期
16-22
,共7页
琚陈相%李淑娟%于晓晶%李曼
琚陳相%李淑娟%于曉晶%李曼
거진상%리숙연%우효정%리만
GRAPES_Meso模式%暴雨预报%陆面方案
GRAPES_Meso模式%暴雨預報%陸麵方案
GRAPES_Meso모식%폭우예보%륙면방안
GRAPES Meso model%heavy rainfall forecast%land surface parameterization scheme
用中尺度数值预报模式GRAPES_Meso V3.3.2.5版本以及NCEP的GFS资料,分别选用模式中不同陆面参数化方案(SLAB、LSM、NOAH)对2013年9月14—17日新疆强降水过程进行数值模拟试验,结果表明:(1)陆面方案对主要雨带的落区和大致走向影响并不大,但对降水强度的预报还是敏感的,SLAB陆面方案预报的降水场与实况场最相似;(2)不同陆面方案在选取的强降水区域预报的降水量均较实况偏小,比较各试验后发现NOAH方案较其他方案的预报结果显得更加稳定与合理。
用中呎度數值預報模式GRAPES_Meso V3.3.2.5版本以及NCEP的GFS資料,分彆選用模式中不同陸麵參數化方案(SLAB、LSM、NOAH)對2013年9月14—17日新疆彊降水過程進行數值模擬試驗,結果錶明:(1)陸麵方案對主要雨帶的落區和大緻走嚮影響併不大,但對降水彊度的預報還是敏感的,SLAB陸麵方案預報的降水場與實況場最相似;(2)不同陸麵方案在選取的彊降水區域預報的降水量均較實況偏小,比較各試驗後髮現NOAH方案較其他方案的預報結果顯得更加穩定與閤理。
용중척도수치예보모식GRAPES_Meso V3.3.2.5판본이급NCEP적GFS자료,분별선용모식중불동륙면삼수화방안(SLAB、LSM、NOAH)대2013년9월14—17일신강강강수과정진행수치모의시험,결과표명:(1)륙면방안대주요우대적락구화대치주향영향병불대,단대강수강도적예보환시민감적,SLAB륙면방안예보적강수장여실황장최상사;(2)불동륙면방안재선취적강강수구역예보적강수량균교실황편소,비교각시험후발현NOAH방안교기타방안적예보결과현득경가은정여합리。
The mesoscale numerical prediction model GRAEPS Meso V3.3.2.5 version and National Centers for Environmental Prediction(NCEP)GFS data are used to simulate a heavy rainfall event in Xinjiang during 14-17 September, 2013, and the precipitation sensitivity to land surface parameterization schemes is tested. The results show that:(1)The forecast precipitation patterns from GRAPES model generally agree with the observations, and the sensitivity of the precipitation forecast to the land surface physical process is distinct. The precipitation field forecasted by the SLAB scheme is the most similar to the observation field.(2)The precipitation forecasted by different land surface schemes in selected heavy rainfall area is smaller than the observation. Comparing all results of precipitation forecast with different land surface parameterization schemes, NOAH scheme gives more reasonable and stable forecast effect than the others.