1 Notation and Terminology Throughout this note κ is always a regular uncountable cardinal, and λ≥κ acardinal. When we say an ideal I on P_κλ, it means that I is a κ-completenon-principal fine ideal on P_κλ. ...1 Notation and Terminology Throughout this note κ is always a regular uncountable cardinal, and λ≥κ acardinal. When we say an ideal I on P_κλ, it means that I is a κ-completenon-principal fine ideal on P_κλ. If M is a ground model of ZFC, then Ult_U(M)denotes the ultrapower of M associated with U, an ultrapower on P_κλ. Let I be an ideal on P_κλ. We consider the generic extension of M given by thecompletion of Boolean algebra P(P_κλ)/I, i.e. forcing with【R(I),≤_I), where R(I)展开更多
利用WRF(Weather Research and Forecasting)模式,在理想岛屿地形条件下设计了云的微物理冰相过程中水凝物中有霰和无霰的两个对比试验,考察了台风登陆时复杂冰相和简单冰相对台风移动路径、强度和降水增幅的影响。结果表明:1)云微物理...利用WRF(Weather Research and Forecasting)模式,在理想岛屿地形条件下设计了云的微物理冰相过程中水凝物中有霰和无霰的两个对比试验,考察了台风登陆时复杂冰相和简单冰相对台风移动路径、强度和降水增幅的影响。结果表明:1)云微物理过程中有霰的复杂冰相过程时,具有更强烈的云“播撒”效应,因而对台风降水具有明显增幅作用。2)当台风受到理想地形作用时,地形对云“播撒”效应引起的增幅作用具有放大作用,此时台风眼墙非绝热加热量形成明显增强中心,使得台风降水增幅明显。3)当台风登陆时,云微物理冰相过程使得台风越山时存在向西北指向的涡度变化倾向。展开更多
文摘1 Notation and Terminology Throughout this note κ is always a regular uncountable cardinal, and λ≥κ acardinal. When we say an ideal I on P_κλ, it means that I is a κ-completenon-principal fine ideal on P_κλ. If M is a ground model of ZFC, then Ult_U(M)denotes the ultrapower of M associated with U, an ultrapower on P_κλ. Let I be an ideal on P_κλ. We consider the generic extension of M given by thecompletion of Boolean algebra P(P_κλ)/I, i.e. forcing with【R(I),≤_I), where R(I)
文摘利用WRF(Weather Research and Forecasting)模式,在理想岛屿地形条件下设计了云的微物理冰相过程中水凝物中有霰和无霰的两个对比试验,考察了台风登陆时复杂冰相和简单冰相对台风移动路径、强度和降水增幅的影响。结果表明:1)云微物理过程中有霰的复杂冰相过程时,具有更强烈的云“播撒”效应,因而对台风降水具有明显增幅作用。2)当台风受到理想地形作用时,地形对云“播撒”效应引起的增幅作用具有放大作用,此时台风眼墙非绝热加热量形成明显增强中心,使得台风降水增幅明显。3)当台风登陆时,云微物理冰相过程使得台风越山时存在向西北指向的涡度变化倾向。
