how to calculate extreme events

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varunesh
varunesh 2014-3-22
评论： Image Analyst 2014-4-20
sir i have 95 year daily model output rainfall data form 2006-1-1 to 2100-1-1.i want to calculate extreme events.if Anyone have any ideas how I can do this in matlab or program then please help me .Thank you!
  1 个评论
Image Analyst
Image Analyst 2014-4-20
Original question in case varunesh deletes it:
sir i have 95 year daily model output rainfall data form 2006-1-1 to 2100-1-1.i want to calculate extreme events.if Anyone have any ideas how I can do this in matlab or program then please help me .Thank you!

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回答（4 个）

Image Analyst
Image Analyst 2014-3-22
I know I'm not Roger, but what was wrong with my answer in your duplicate question: http://www.mathworks.com/matlabcentral/answers/122387#answer_129343
varunesh
varunesh 2014-3-22
Thank you so much sir(Image Analyst) for my support i m very sorry sir,i am new in this field ...please give me brief knowledge about this and if you have any program for finding this then please give me ...i want to calculate extreme value in the basis of india meteorogical department (rainday day =2.5 or more at a day),(rainday=0.1 mm or more),(heavy rainfall=64.5),(very heavy=124.m to 244.5 mm), and extremely heavy = >244.5 mm.so according to this scenario please help me ,thank you
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Star Strider
Star Strider 2014-3-22
Posting a representative sample of your data might help.
What do want? The days it rained more than 0.1 mm but less than 2.5 mm, etc., only the days it rained at least 244.5 mm, or something else?
Image Analyst
Image Analyst 2014-3-24
Please reply to each of us and don't post "Answers" of your own that are not actually "Answers" to your original question. Star Strider has asked twice now for sample data. Post that, along with code to read it in from a file if you're attaching a data file, and tell us what value, and what location it's in, that you would like to extract from it.

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Image Analyst
Image Analyst 2014-3-22
编辑：Image Analyst 2014-3-22
You mean an example like this:
format short g
% Create sample data: Rainfall for 10 years.
% An array 10 years tall by 12 months wide
rainfall = 9*rand(10, 12)
% Get rainiest year for each month.
[maxRain, yearOfMax] = max(rainfall)
varunesh
varunesh 2014-3-24
Star Strider sir my data size is 20x22x34699.this is 95 year precipitation data for indian region.2006-1-1 to 2100-1-1
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Star Strider
Star Strider 2014-3-24
By my calculations, you have one page (3rd dimension) for every day. It might help for you to post one (20x22) page and explain what you want to get from it.

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