Temperature per specific date as a function of latitude and longitude?

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MJ
MJ 2020-3-18
回答： darova 2020-3-18
Can anyone help me pull temperature based on specific dates, latitudes, and longitudes? For instance, what was the tempearture on Jan 15, 2020, at 38.9072° N, 77.0369° W?
I have a large number of quieries like this and need an efficient way to pull the data.
Thanks!
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Adam Danz
Adam Danz 2020-3-18
编辑：Adam Danz 2020-3-18
I'm assuming you have temperature data for a bunch of (latitude, longitude) and date values (3D array?).
To address your question, you can use ismembertol to match the latitude and longitude values with your reference values. ismembertol will match values that are close enough given the tolerance level. Then match the dates which may need to be adjusted to removed the time-part so that you're only working with dates.
We can't get too specific without having more detail about your data, how it's arranges, its precision, etc.

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darova
darova 2020-3-18
AN example
ii = 1:10;
str = sprintf('f%d ',ii);
str = strsplit(str,' ');
str(end) = [];
A = table(str',ii',ii'+3,...
'VariableNames',{'data' 'N' 'W'})
c1 = strcmp(A.data,'f2'); % find data 'f2'
c2 = abs(A.N-2) < 0.01; % find latitude '2'
c3 = abs(A.W-5) < 0.01; % find longitude '5'
ix = find(c1 & c2 & c3)

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