My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
WMOD00399
CWCB
>
Weather Modification
>
DayForward
>
WMOD00399
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/28/2009 2:37:39 PM
Creation date
4/16/2008 11:05:22 AM
Metadata
Fields
Template:
Weather Modification
Title
WMO Training Workshop on Weather Modification for Meteorologists - Lecture Notes
Date
12/1/1979
Weather Modification - Doc Type
Report
Jump to thumbnail
< previous set
next set >
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
232
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
<br />- I!) - <br /> <br />~ <br /> <br />PEP up to this point has been progre,ssing like clockwork with well coordinate~, <br />efficient actions by WMO Congress VII "down" to the work of the Scientific Planning Group. <br />With the Site Selection Phase 3 being started now it can only be hoped that the enthusiasm <br />of the Spanish authorities and scientists is matched by the contribution of resources by <br />the WHO Members. Those resources with I~he international scientific expertise and leadership <br />as well as technical know-how - which is ralli.ed and coordinated by WHO - have to dovetail <br />with the meteorological and logistic competence of the Spanish Meteorological Service. <br />Together - I firmly believe - we can do an excellent job and move our scientific knowledge <br />on precipitation enhancement one step further. If at the same time precipitation can be <br />increased it would be perfect from all ]points of view. We should remember, however, that <br />Congress considers any statistically significant result as a positive outcome of PEP as <br />long as the experiment has been carried out along the highest scientific standards. <br /> <br />The lessons we have already l,earned through PEP and particularly SSP-2 are <br />related to expected experiment durations which can only be assessed on the basis of his- <br />toric precipitation records over a period of at least 10 years. Thus, governments <br />interested in precipitation enhancement in a given area should start now and bring their <br />rain gauge network up to standards for 'weather modification. <br /> <br />The world-wide prospect for statistically evaluated weather modification experi- <br />ments is demonstrated by Figure 4 with its display of rainfall variability. Not only would <br />the experiment duration need expansion in an llrid region in order to have a similar set of <br />cases available for statistical evaluation as in less dry regions, the expansion would be <br />compounded by the higher variability which makes it more difficult to detect a "seeding <br />signal" from within the noise of the rainfall variability. <br /> <br /> <br />1C' <br /> <br /> <br /> <br />,.?~_~~. ~.~ .... _...~\....<~;} ....~f~i1r~ <br />. '.__. .' -.,.. , .).L. ,"' f \:) <br />.~ ... .....,.. .--:,."> "'}-l\ ;.=,._ .....\a. "\t <br />-, ,.r,' " .J: ,...."\" ~!', (~ <br /> <br />;:AiM .. '" 'y \.<-' ~~ <br />-..-.:' , . '"\' 'I <br />:'--,,,, . ')~~ <br /> <br />". .... i <br /> <br />'( <br /> <br />';: ~:o.... r. ..r~"': <br />. .- .. '.;.,; 0 I <br />\ .'....i..~ <br />':j .' '". I ~"'!. <br />....... "',~.. <br />',H,,' .~ <br />.~;~.".a.:... <br />~--r'" <br /> <br />~ <br /> <br />F.igufte 4. AUVtage dev.i.aUo/'l.J.> in annual ftcUnnaU in peftc.ent 06 long-teftm aveftage <br />(6ftom S. Pe.t:t.eftMen, 1958) <br />
The URL can be used to link to this page
Your browser does not support the video tag.