IMPROVEMENT TO THE EVAPORATION DUCT MODEL BY INTRODUCING NONLINEAR SIMILARITY FU

排行榜 收藏 打印 发给朋友 举报 来源: 《Journal of Tropical Meteorology》 发布者:cjk3d
热度14票 浏览15次 【共0条评论】【我要评论 时间:2012年4月05日 09:49
水利论文/a K~6sW

IMPROVEMENT TO THE EVAPORATION DUCT MODEL BY INTRODUCING NONLINEAR SIMILARITY FUNCTIONS IN STABLE CONDITIONS水利论文8v p~7w7T/T3]Y:A#`m

d |)NI,i7X0Abstract:Modified refractivity(M)profile is an important parameter to describe the atmospheric refraction environment,as well as a key factor in uniquely evaluating electromagnetic propagation effects.In order to improve the model-derived M profile in stable(especially very stable)conditions,three nonlinear similarity functions,namely BH91,CB05,SHEBA07,are introduced in this paper to improve the original Babin_V25model,and the performances of these modified models are verified based on the hydrometeorological observations from tower platforms,which are finally compared with the original Babin_V25 model and Local HYQ92 model.Results show that introducing nonlinear similarity functions can significantly improve the model-derived M profile; especially,the newly developed SHEBA07 functions manage to reduce the predicted root mean square(rms)differences of M and M slope(for both 0-5 m and 5-40 m)by64.5%,16.6%,and 60.4%,respectively in stable conditions.Unfortunately,this improved method reacts little on the evaporation duct height; in contrast,Local_HYQ92 model is capable of reducing the predicted rms differences of M,M slope(for both 0-5 m and 5-40 m),and evaporation duct height by 76.7%,40.2%,83.7%,and 58.0% respectively.Finally,a new recommendation is made to apply Local_HYQ92 and Babin_SHEBA07 in very stable conditions considering that M slope is more important than evaporation duct height and absolute M value in uniquely determining electromagnetic propagation effects.

QORdd"p1n7o*@2N3D0

PR$W a7C@ d:v pg0作者:水利论文;HO0oS~b7[

T/Ms@%P1?7L@0Author:水利论文9D7k"^m&S!Ne-izE

eC+c#CZ'C.r0DING Ju-li[1] FEI Jian-fang[1] HUANG Xiao-gang[1] HU Xiao-hua[2] ZHOU Xin[3]水利论文 Zm7|T|BIV

"[n._UI)@{0@%`0作者单位:水利论文lP"`e,N$}

水利论文 h9@(Li;? h

Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101 ChinaBeijing 100081 China,nit,61741UQinhuangdao 066200 China,Unit,91404

Q0}#c5w*ZW0 水利论文5rfDlW(ug2G

期 刊:水利论文f H(g6ub7E+}

i,c&S*p Z qDf0热带气象学报(英文版)水利论文8c&\&Y p4lG-m/r0w

C:Lb4OYO uI0Journal:水利论文]5z+C"R2]*ht

水利论文Zg v4D:Hi*HB.Z

JOURNAL OF TROPICAL METEOROLOGY水利论文 W+~:`F$Hu1V4q

水利论文po/F P8vLZ

年,卷(期):水利论文9bk0d;O ]'L;Q*x&E

水利论文Z2Vd:_`1U

2011, 17(1)

6A\)F.y.axWs0

4Ly#?:E p t0分类号:

E#x6Q8V)U`"_o8f0

c$Xd%Z4DQ7n.t0P435水利论文#E3wa9wJ

水利论文/]S5O(F6v Uo^5N8^h

Keywords:

\+AwL O\K0

:T/v8b)`W S Nv@"}^'A0evaporation duct水利论文D?O,i'en

水利论文|7WZ:^:HDoD

similarity theory

[/P'G|/{?Db0

7g!r:Y/]%U b0flux-profile relationship水利论文kN!jI&D[x

+o\@Pf?)i[0nondimensional similarity functions

z`Bp'O9UxNM0 水利论文9qS8vPPS8eO3u|0K

stable boundary layer

[u;_:ji2Ub(A)T$F0 水利论文uM$^tQyR~

electromagnetic wave propagation

8bP7DZFW `0 水利论文 m u;nQR e

radar detective ability

C_M}"n-U0 水利论文eE,C2r^8D

机标分类号:水利论文 ndWp._+h

水利论文1eP2@ g*w2qpKVQ

P4 X70

#brXZ]JQ0 水利论文 z3k `#`8Zm]-G

机标关键词:

*I3NfdF2\9g0

-C` x#p(pDDk@4R0Z0SIMILARITY FUNCTIONS similarity functions model differences profile improved method especially new recommendation contrast rms little three paper order based root made key

9Id8BdVv0 水利论文.Y4Z0M3Y K R It-A

基金项目:水利论文5q,lxy(S7I

水利论文C%cxop'g-U

Key project of the National Natural Science Foundation of China,the"973"National Basis Research and Development Program of China水利论文#U@7~WemV

顶:1 踩:2
【已经有11人表态】
下一篇:COMPARISON OF CHARACTERISTICS BETWEEN THE SOUTH CHINA SEA SUMMER MONSOON OUTBREA
上一篇:ANALYSIS OF THE TRENDS OF THUNDERSTORMS IN 1951-2007 IN JIANGSU PROVINCE
查看全部回复【已有0位网友发表了看法】

广告投放

广告投放