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Dear All I have a net cdf file representing daily rainfall data of 50 years (1951-2000) with extension .nc.gz.tar. I unzipped the file and it gave me individual file of 50 years with .nc extension. I displayed the net cdf file of one year (say 1967). If I understand correctly, for 1967 I can display the rainfall raster map for a single day. Lets say, I am displaying the rainfall raster for 01/01/1967/ My problem is this: 1. I need to extract particular region from the raster file based on the coordinates (X°,X° N, Y°,Y°E). How would I do this? 2. I need to repeat this for every day of 1967 and for every year (1951-2000). I want the output to be daily rainfall data of 1951-2000 of a region whose co-ordinates are (X°,X° N, Y°,Y°E). I am really stuck with this and I have no idea where to begin with. Any help will be really appreciated. Thanks a lot.
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01-16-2014
04:53 AM
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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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11-25-2013
04:50 AM
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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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11-24-2013
06:28 AM
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hi everyone my problem is this: i have a point shapefile of Indian districts. i need to calculate the distance between each district and an international port. I have the XY coordinates of the port. what projection should i used and how do i calculate the distance between the two ports.
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05-07-2012
08:29 AM
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