Weather Prediction by Numerical Process (Classic Reprint)

PREFACE TH ~~ prucess of' fOl'eca,g('ing, which h:l; been carricd on in London for m;.LIlY yetU8, may "be typified by one of ito lat(~st developmcnt.s, 1amely CuI. E. Gold's fnrJex oj rv(~{(the1' Maps~, It would hI! difficult to imagine anything Illore immediately practical. The observing ~tatiulls tclegr<1ph Lhe elements of present weatber, At the he~d office theEi{! purticuhrs are set iu their rl~t:s l1pon a large·sc,l,le map. Thfl index then enables the fOl'eCastel' t.() lind a number of previous maps which resemhle thc present one. The (Orec(l.c:;t is based on the snppusit.io'l thtl,t whlLt the atmusphere did then, it will do a.gain now. There is no houblesolXl.e calculation, with its po~sibilities of theoretical ur arithrnetiea.l elTor. The pn,s(, history of the Itmosphere ii) nsed, su to speak, !l.S !~ full-scale working model of it~ present. self. But-olle may reflect-the Nautical Almmtac, th:1... mar~'el of aCCIlra.tfl fOJ"ecastillg, is not ba'!e

Table of Contents

CONTENTS; x; 1 SU!lD1ARY 1; II IS'fHODUC'l'ORY r;XlIlI'II'~; HI THR UJlOICI'~ OF COOltDI~ATE D1FFKltENCJ~~; 3/1 Exir,ting l'ractico; 3:'2 1'h~ ttivil'ion inLo horizont:!l layers; 3/3- li!1Ii1l:t nf n!")'in!; t,hA ili7~ nf the fmi~ dHl"Ctl!hC<'16; 3:'4 TlII~ l)ll,t~rn on th( m~p; 3,'S Devioo!l for maintaining Ii nearly I!qlilI'C dlcqucr; 3/6 Snnlmary on coordhwce diO(lrllllCFla; 317 TtIl OI-igill of' JOllgitude; Hi; 16; 16; HI; 18; 19; 10; 20; IV TH}: }'LJNIJA)JENTAJ, EQL""A'IIONS 21; 4/0 General 21; 4;" , Char:v:-tcri!ltic oquntiow; of dry :Inn rnoif!t Iir 23; 4:'2 'Ihe indc2trudilli lily of 1t11f!f! 2~; 4(3 Clllweyance of Wy :>4; 4:'10 BonP"'ltl: t