ON August 21,1998,the first women’s teamattempting to float down from the source of theChangjiang River started from Chengdu,SichuanProvince.We drove towards the west and traversed theSongpan grassland,going deep int...ON August 21,1998,the first women’s teamattempting to float down from the source of theChangjiang River started from Chengdu,SichuanProvince.We drove towards the west and traversed theSongpan grassland,going deep into the Qinghai-TibetanPlateau along the Zoige,Xining and Golmud routes.OnSeptember 11,we arrived at the source of the ChangjiangRiver-the foot of the snow-covered GeladaindongMountain.On September 26,all members of the team,traveling either by land or by water,safely assembled bythe Tuotuo River.展开更多
This article explores the dead universe theory as a novel interpretation for the origin and evolution of the universe, suggesting that our cosmos may have originated from the remnants of a preceding universe. This per...This article explores the dead universe theory as a novel interpretation for the origin and evolution of the universe, suggesting that our cosmos may have originated from the remnants of a preceding universe. This perspective challenges the conventional Big Bang theory, particularly concerning dark matter, the expansion of the universe, and the interpretation of phenomena such as gravitational waves.展开更多
为进一步讨论新型“上升-平漂-下降”探空数据在资料同化与数值预报中的应用效果,基于WRF(Weather Research and Forecast)模式及WRFDA(WRF data assimilation)同化系统进行同化对比试验。在对新型探空试验数据进行质量评估和稀疏化的...为进一步讨论新型“上升-平漂-下降”探空数据在资料同化与数值预报中的应用效果,基于WRF(Weather Research and Forecast)模式及WRFDA(WRF data assimilation)同化系统进行同化对比试验。在对新型探空试验数据进行质量评估和稀疏化的基础上,将下降段资料与常规观测资料组合同化,并讨论其对于长江中下游地区暴雨预报质量的影响及原因。主要试验结果包括:通过与FNL资料、业务同站探空数据交叉对比验证最新试验数据准确性;使用特性层与规定层结合的方案对新型探空上升、下降段进行稀疏化处理可以得到较优效果;同化下降段数据能够在一定程度上提高暴雨预报技巧;风场及湿度场的调整是暴雨预报技巧有所提高的重要原因之一。展开更多
文摘ON August 21,1998,the first women’s teamattempting to float down from the source of theChangjiang River started from Chengdu,SichuanProvince.We drove towards the west and traversed theSongpan grassland,going deep into the Qinghai-TibetanPlateau along the Zoige,Xining and Golmud routes.OnSeptember 11,we arrived at the source of the ChangjiangRiver-the foot of the snow-covered GeladaindongMountain.On September 26,all members of the team,traveling either by land or by water,safely assembled bythe Tuotuo River.
文摘This article explores the dead universe theory as a novel interpretation for the origin and evolution of the universe, suggesting that our cosmos may have originated from the remnants of a preceding universe. This perspective challenges the conventional Big Bang theory, particularly concerning dark matter, the expansion of the universe, and the interpretation of phenomena such as gravitational waves.
文摘为进一步讨论新型“上升-平漂-下降”探空数据在资料同化与数值预报中的应用效果,基于WRF(Weather Research and Forecast)模式及WRFDA(WRF data assimilation)同化系统进行同化对比试验。在对新型探空试验数据进行质量评估和稀疏化的基础上,将下降段资料与常规观测资料组合同化,并讨论其对于长江中下游地区暴雨预报质量的影响及原因。主要试验结果包括:通过与FNL资料、业务同站探空数据交叉对比验证最新试验数据准确性;使用特性层与规定层结合的方案对新型探空上升、下降段进行稀疏化处理可以得到较优效果;同化下降段数据能够在一定程度上提高暴雨预报技巧;风场及湿度场的调整是暴雨预报技巧有所提高的重要原因之一。
