lat long and values of each pixel

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11-24-2013 06:28 AM
KuntalSingh
New Contributor
Hi

Is there any way to get the x, y coordinates of each pixel and the corresponding pixel value in arcmap 10 (and whether I can export to excel)

Thanks a ot
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3 Replies
NidhinKarthikeyan
Regular Contributor II
It can be done using Python. Take a look at gis stackexchange forum post.
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NeilAyres
MVP Frequent Contributor
Yes,
RasterToPoint & Add_XY are probably what you need. But if the Raster is large then that is a lot of points.
Why would you need to look at it in Excel anyway?

N
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KuntalSingh
New Contributor
Yes,
RasterToPoint & Add_XY are probably what you need. But if the Raster is large then that is a lot of points.
Why would you need to look at it in Excel anyway?

N


Well I am trying to calculate  evapotranspiration for each grid for the month of January using the formula:

PE = 16*C*(10Tm/I)^a

where PE= Potential evapotranspiration
Tm= January average temperature
I= Σ (Tm / 5)^1.51
a= (67.5 x 10-8 * I^3) �?? (77.1 x 10-6 * I^2) + (0.0179 * I) + 0.492 
C= daylight coefficient
the value of C is calculated as:

C = 0.0721x + 0.5414 where x is the lat value of each grid

So I wanted to have lat value of each grid, use it to calculate C for each grid and use the C for calculating PE for the grid. It sounds way to complicated. Any idea if this can be done using raster calculator?
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