力学不倦分享 http://blog.sciencenet.cn/u/Mech 读万卷书,参非常道,书在手中,道在心中;行万里路,勘寻常物,路在脚下,物在眼下。https://www.researchgate.net/profile/Li-Qun_Chen

博文

五校校友

已有 1799 次阅读 2023-10-21 22:59 |个人分类:往事钩沉|系统分类:生活其它

1978》回忆中考时,升学的运作也很重要。年轻人需要懂行的父母指点帮助。我父母似乎没有为我特别做什么。我回想到身边一个成功例子。算起来我们是三十中、八中、鞍山钢院、东北大学、哈尔滨工业大学五校的校友。

 

初中有位同学,名字我记得但不说了。他在三十中时读音乐班,刚入学在大家眼中应该和我差不多,都是各自班级的学委。刚开始重视学习时,他就不在我们那个城乡结合部的中学混了,转入八中的初中部。我则考取了重点班,因为是第一名,遥遥领先还很得意。

 

中考都考入八中重点班。他成绩没有我高,但很快转学去了一中。铁东区的一中、铁西区的三中和立山区的八中是鞍山市当时三所省重点,按区招生,但一中要比三中和八中好得多。搬家后,我户口其实已经属于一中的学区,而且我的中考成绩在一中也能算好的,虽然不能像八中在前几名。但父母和我都没有想到转学一中的事情。学校条件好加上努力,校友考取了清华大学。学校条件差加上我努力不足,多少也有些坏运气,我只考取了鞍山钢院。

 

再说几句后面的职业轨迹。他毕业回鞍山工作,后来在哈尔滨工业大学读硕士,毕业到我曾任教的鞍山钢院当老师,又到我在职读硕士的东北大学读了在职博士,回钢院教师,当了教授博导,好像还有企业兼职。我们高中后再没有见过,但真是很有渊源,三十中同届同学、八中同届同学、鞍山钢院校友、哈尔滨工业大学校友和东北大学校友。

 

巧的是,他是我太太的高中同班同学,他太太是我的高一同班同学,她们还是同行。高中同学很多毕业后就没有见过。他太太还是他女朋友时,与我在鞍山到大连的火车上不期而遇,聊了一道。世界真小!




https://blog.sciencenet.cn/blog-220220-1406746.html

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IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [10]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2023-7-20 19:37
闂備胶鍋ㄩ崕鑼垝韫囨洘宕叉繛鍡樺灦閸犲棗霉閿濆熆鎺楀磻閹捐宸濇い鎾寸矆缁捇姊洪悡搴f憼闁搞劍濞婇幊娆撳箣閿旇棄鍓梺鍛婃处閸忔﹢宕eú顏呯厵妞ゆ牗绻冮悵顏堟煟閿旇娅嶉柟顔藉▕瀵墎鎹勯妸锔界钒濠电偞鍨堕幑渚€顢欐繝鍕笉闁绘柨鍚嬮崵鈧梺鍛婁緱閸ㄩ亶鎮鹃柆宥嗗仺妞ゆ牗绋撻幗鍐煟閿旇棄鐏寸€规洘宀告俊鍫曞幢濡厧濮洪梻浣告惈濞层倝鎮洪妸褎鏆滈悗娑櫳戞禍銈夋煙鐎电ǹ校闁糕晛鍊块幃妤呭捶椤撶偘鏉梺閫炲苯澧柛濠勬暬閸┾偓妞ゆ帒锕ョ€氾拷 闂備焦瀵ч崘濠氬箯閿燂拷 缂傚倸鍊搁崯顖炪€冮崱娑樿摕濠㈣泛鏈€氬鏌ㄩ悤鍌涘

"...the dreams of a visionary mind to be closer to reality than the common sense judgment of  the realists." 闂備焦瀵ч崘濠氬箯閿燂拷 Car-Gustaf Arvid Rossby
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [9]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2023-7-20 19:37
闂備胶鍋ㄩ崕鑼垝韫囨洘宕叉繛鍡樺灦閸犲棗霉閿濆熆鎺楀磻閹捐宸濇い鎾寸矆缁捇姊洪悡搴f憼闁搞劍濞婇幊娆撳箣閿旇棄鍓梺鍛婃处閸忔﹢宕eú顏呯厵妞ゆ牗绻冮悵顏堟煟閿旇娅嶉柟顔藉▕瀵墎鎹勯妸锔界钒濠电偞鍨堕幑渚€顢欐繝鍕笉闁绘柨鍚嬮崵鈧梺鍛婁緱閸ㄩ亶鎮鹃柆宥嗗仺妞ゆ牗绋撻幗鍐煟閿旇棄鐏寸€规洘宀告俊鍫曞幢濡厧濮洪梻浣告惈濞层倝鎮洪妸褎鏆滈悗娑櫳戞禍銈夋煙鐎电ǹ校闁糕晛鍊块幃妤呭捶椤撶偘鏉梺閫炲苯澧柛濠勬暬閸┾偓妞ゆ帒锕ョ€氾拷 闂備焦瀵ч崘濠氬箯閿燂拷 缂傚倸鍊搁崯顖炪€冮崱娑樿摕濠㈣泛鏈€氬鏌ㄩ悤鍌涘

"...the dreams of a visionary mind to be closer to reality than the common sense judgment of  the realists." 闂備焦瀵ч崘濠氬箯閿燂拷 Car-Gustaf Arvid Rossby
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [8]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2023-7-9 21:00
[1] 闂佽崵濮嶉崶銊﹂敪缂備胶濮寸粔鍓佸垝閳哄懏鏅搁柨鐕傛嫹, 婵犵數鍋涢懟顖炴偋韫囨冻缍栭柟鐗堟緲鐎氬鏌ㄩ悤鍌涘. 闂備礁鎼悧婊堝礈濞戭澁缍栭柡宥庣仢閹烘鍗虫慨妯夸含閹虫繈姊哄Ч鍥х伄闁哥姴绉剁划鈺冣偓娑櫳戞刊瀛樼節婵犲倸鏆欑紒鑼樁ature闂備焦瀵х粙鎴︽儔閼测斁鍋撳鐓庡箻缂侇喒鏅濋埀顒婄秵娴滅偤寮冲鑸电厵閺夊牏鍋撶€氾拷9闂備胶鎳撻悺銊╁礉閺囩喎顕遍柟閭﹀幗婵瓨绻濇繝鍌滃婵炲拑鎷�. 缂傚倷绀侀ˇ浼村垂閻㈠壊鏁嗛柣鏃囨绾鹃箖鏌熼幖顓炵仯缂佲偓閿燂拷2023-07-08
https://news.sciencenet.cn/htmlnews/2023/7/504367.shtm

[2] Kaifeng Bi, Lingxi Xie, Hengheng Zhang, Xin Chen, Xiaotao Gu & Qi Tian. Accurate medium-range global weather forecasting with 3D neural networks [J]. Nature, 2023-07-05
doi:  10.1038/s41586-023-06185-3
https://www.nature.com/articles/s41586-023-06185-3

[3] Kaifeng Bi, Lingxi Xie, Hengheng Zhang, Xin Chen, Xiaotao Gu, Qi Tian. Pangu-Weather: A 3D High-Resolution Model for Fast and Accurate Global Weather Forecast. 2022-11-03
doi:  10.48550/arXiv.2211.02556
https://arxiv.org/abs/2211.02556

[4] 闂佽崵濮撮鍐垂瑜版帒闂柣鎴f閸楁娊鏌ㄩ悤鍌涘​闂備焦瀵ч崘濠氬箯閿燂拷2023-07-06闂備焦瀵х粙鎴︽儔閻撳簶鏋嶉柕澶涘閳绘柨鈹戦崒娑氱厭ture婵犳鍠楃换鎰緤娴犲鍨傞柡鍐ㄧ墕杩濇繛杈剧秬椤曟牠宕曠仦鍓х闁圭粯甯掔痪褔鏌i妸褎鏆╅柟鍛婂浮閸ㄩ箖鎳犵捄鍝勭畱闂傚⿴鍋勫ú銈夊疮閹惰棄纾挎俊銈勮兌閳绘洟鏌ㄩ弮鍥モ偓鈧柛瀣尰閹峰懘骞嬮幒鎾虫敪闂傚倷鐒﹁ぐ鍐崲閹烘搩娈介柛銉墮濡﹢鎮峰▎蹇擃伌闁衡偓閹惰姤鐓曟繛鍡樺姇閻忋儳绱掗弮鍌氬幋闁轰礁绉撮~婵囨綇閵娧嶇喘闂備礁鎲¢悷锝夊磹閺嶎厽鍎嶉柣銏犵仛鐎殿剟鏌嶉妷褍浠哄ù婊愮稻娣囧﹪顢涘璇蹭壕鐎规洖娲犻崑鎾绘倻閽樺袝闁硅壈鎻徊鍧楀极妤e啫绾ч柍鍝勫€婚埥澶愭煟椤愩垻肖缂佽鲸甯¢幊婵嬪级鐠恒劌顫�
https://zhuanlan.zhihu.com/p/641851617

[5] 闂佽崵濮撮鍐垂瑜版帒闂柣鎴f閸楁娊鏌ㄩ悤鍌涘​闂備焦瀵ч崘濠氬箯閿燂拷2022-11-10闂備焦瀵х粙鎴︽嚐椤栨氨鏆﹂柡鍥╁枔閳绘棃寮堕悙鏉戭棆闂傚懏锕㈤弻鐔虹磼濡搫顫岄梺鎼炲€ら崣鍐箚閸曨倠鐔煎传閸曨厾鈻曟繝娈垮枟钃辨俊顐$窔閹稿懘宕熼鈧欢鐐垫喐鎼淬倕鏆為梻浣规偠閸斿矂顢栭幋鐘愁潟闁绘鐗忛埢鏃€銇勯幘鍗炵仾婵絾鍔欓弻锟犲醇閵忕姵鐎鹃梺姹囧妿閺佹悂骞愰幒妤佹櫢闁绘瑢鍋撻柡鍡樻礋閺岀喖鐓幓鎺戝Б缂備降鍔嶇€笛囧箚閺冨牊鏅濋柛灞诲€栫粋鍐ㄢ攽閻愬弶鐏ら柕鍫濇肠閵忋倕绾ч柍杞扮劍閻绱掗崡鐐差暢缂佽鲸甯¢幃銏ゅ川婵犲喚鍟€闂備胶枪閿曘倝宕ョ€n喖钃熼柣鏂跨殱閺嬫牠鏌¢崶鏈电敖缂佲偓婢舵劖鈷戞い鎰╁€曢弸搴ㄦ倵鐟欏嫬鈻曟鐐存崌楠炲洭顢楅埀顒傚閿燂拷10000闂備胶枪閿曘倗绮旈搹顐ゎ洸闁圭儤鎸鹃埢鏃堟煥閻曞倹瀚�
https://zhuanlan.zhihu.com/p/582285853
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [7]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2023-7-7 17:08
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Verification of the high-resolution (HRES) forecast of surface parameters
Overview

https://charts.ecmwf.int/products/plwww_m_hr_wp_ts/overview/parameter?parameter=2m%20temperature

https://charts.ecmwf.int/products/plwww_m_hr_wp_ts?parameter=10m%20wind%20speed&player_dimension=parameter

10m wind speed

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Charts catalogue

https://charts.ecmwf.int/?facets=%7B%22Range%22%3A%5B%5D%2C%22Type%22%3A%5B%22Verification%22%5D%7D
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [6]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2022-7-18 22:05
ECMWF
  
European Centre for Medium-Range Weather Forecast
  
婵犵數鍋涢弻宀勫礋椤愩倕鎼稿┑鐐村灦閹尖晠宕㈤挊澶涜€块柍鈺佸暙缁剁偤鏌嶉崫鍕偓璇残掑⿰鍏炬盯寮堕崹顕呬痪婵犳鍠撻崐鏍矙婢舵劦鏁囬柣鎰版涧椤╋拷
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [5]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2022-2-25 22:56
Verification of the high-resolution forecast of surface parameters
Verification of high-resolution forecasts
  
https://apps.ecmwf.int/webapps/opencharts/products/plwww_m_hr_wp_ts?parameter=10m%20wind%20direction


10 m wind direction
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [4]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2021-7-29 17:38
Verification of the high-resolution forecast of surface parameters

Verification of the high-resolution forecast of surface parameters
Verification of high-resolution forecasts
  
Verification of the high-resolution forecast of surface parameters against SYNOP observations.
© European Centre for Medium-Range Weather Forecasts

https://apps.ecmwf.int/webapps/opencharts/products/plwww_m_hr_wp_ts?parameter=10m%20wind%20speed
IP: 220.160.125.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [3]闁诲孩顔栭崰姘叏鐎靛憡宕查柛宀€鍋涘Λ姗€鏌ㄩ悤鍌涘   2018-7-24 10:49
濠电偞鍨堕幐鍝ョ矓闂堟党锝夊箣閻樺啿鏋傛繝銏f硾閿曘倗绮╅幘顔界叆婵炴垼娅曠€氾拷
闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷  闂備焦瀵ч崘濠氬箯閿燂拷   
2018-7-24 16:361 婵犲痉鏉库偓妤呭Υ鐎n剚顫曟繛鍡樻尭閻愬﹪鏌i幇顒佲枙婵¤尙绮穱濠囧Χ婢跺绱甸柣搴ㄦ涧閻倿寮澶嬫櫢闁跨噦鎷� 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 | 闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [2]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2018-7-23 23:57
Next, both models differ in availability.  GFS runs 4 times a day, ECMWF runs twice a day.  This means GFS has the opportunity to recover from bad forecasts (say, due to bad input data) by producing more per day.  ECMWF generally outperforms GFS, but if one of the forecast runs was bad, you've got to wait longer for new data.  The reason for the difference in availability is due to the time it takes to compute the model.  Nonhydrostatic models are more computationally expensive, which is why ECMWF is the only global nonhydrostatic model used for operation meteorology.

GFS is free, ECMWF is not. You can get the latest GFS runs for free from NCEP (http://www.ncep.noaa.gov/).  You can even download the model and run it on your home super computer if you are so inclined (http://www.nco.ncep.noaa.gov/pmb...).  To get ECMWF data, you typically need to be affiliated with some organization that pays for it.

Both models produce different products. You will probably be able to get the typic...
IP: 202.113.11.*   闂備焦鎮堕崕鎶藉磻濞戔懞鍥晸閿燂拷 | 闂佽崵濮嶅鍡楊伓 闂佽崵濮嶅鍡楊伓 +1 [1]闂備礁鎼ˇ顓㈠礉瀹ュ鏁嗘繝濠傜墛閸嬨倝鏌ㄩ悤鍌涘   2018-7-23 23:56
What is the difference between the ECMWF, GFS, and other weather forecasting models?
https://www.quora.com/What-is-the-difference-between-the-ECMWF-GFS-and-other-weather-forecasting-models
   
here's a lot of differences between numerical models, so I'll just (briefly) mention the differences between GFS and ECMWF.
  
First both are global models, meaning they produce a forecast for the entire world.  There are also regional models like MM5, NAM, and WRF that produce forecasts specific to a region at a high resolution (I'll talk about resolution later).  Regional models tend to seed their forecasts from global models; GFS provides context for MM5.  I'm not sure what regional models use ECMWF, but I'm sure there are quite a few.
  
GFS and ECMWF use different equations for predicting atmospheric conditions.  GFS is a hydrostatic model and ECMWF is nonhydrostatic.  Hydrostatic models use pressure as vertical coordinates in the forecast (e.g. make forecasts at specific isobars) and ess...

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