Tagged Questions
6
votes
2answers
92 views
IDW spatial interpolation: appropriate projection?
I am wondering if anyone can clarify whether point data should be projected to an equidistant projection when using ArcGIS IDW spatial interpolation?
I am working on a dataset from Western North ...
3
votes
0answers
88 views
Can ArcGIS handle missing values to create a contour map?
I am trying to create a contour map for a waterbody. It turns out that in several locations there is no data. I just don't want to use the missing values as zero in ArcGIS because it would create ...
1
vote
1answer
60 views
Tranform Lat/Long NASA points into raster
I have this irradiation file and I would like it to upload it in ArcMap in order to overlay it with other layers to do clips, intersections, etc?
...
2
votes
1answer
185 views
Inverse distance weighted interpolation for categorical and/or binary datasets
I want to perform an Inverse distance weighted (IDW) interpolation to a series of points. However my data set can be categorical or binary and just like the IDW I want to interpolate the new values ...
4
votes
1answer
212 views
Interpolation of Values in ArcGIS
I wanted to interpolate the trend values (trend of sunshine hour calculated over 20 years) throughout the study area from the available station points. My confusion is in the selection of ...
4
votes
0answers
41 views
ArcGis Raster Resampling Question [duplicate]
Possible Duplicate:
How do you decide what interpolation method to use for resampling raster data?
I want to interpolate a certiain target variable over a large territory. I trained a ...
0
votes
2answers
346 views
Difference between Geostatistical analysis and Spatial analysis tool for interpolation
I did interpolation on point data using "Geostatistical Analyst" tool. It gives me surface layer. Then I exported this layer into raster image (by right click on this layer=>export data into raster) ...
5
votes
3answers
687 views
How to interpolate into polygons?
I need to interpolate values from points to polygons.
I have a point shapefile and a shapefile of adjacent polygons. Some polygons get several points falling inside, some have nothing.
I thought ...
4
votes
2answers
2k views
Correct way to create a DEM from point data in csv files
I know this might seem a somewhat general question, but I have to start somewhere.
I have a lot of csv files which contain point data containing height, aspect and slope measurements at a resolution ...
2
votes
1answer
114 views
Creation raster image from interpolated image
I have interpolated temperature data that I have. This image's max and min values are 11.9 and -1.7, respectively. And then I exported this image to raster using 'export to raster'. But the max and ...
5
votes
1answer
228 views
Change the image size in ARCGIS
I did interpolation operation on temperature and precipitation data. Output image size is 3300 (col) and 2550 (row). I have some NDVI images with size of 15456 (col) and 5074 (row). Generally, I want ...
3
votes
1answer
252 views
Spatial Interpolation Methods like PRISM
I am looking for some kind of software (free software) that allows me to make an interpolation like PRISM software.
The interpolation used in PRISM is a
local regression and accounts for ...
1
vote
0answers
260 views
Using ArcGIS to interpolate X, Y, Coordinates and ordinary kriging of point data
I have been using Geosoft's Target to interpolate X, Y coordinates then use them to create grids using ordinary kriging. I am now working with ArcGIS which I am new to and cant seem to be able to ...
4
votes
2answers
406 views
ArcGIS, Calibrating routes, interpolation error
I know that copy a question is not exactly great way to ask on this forum, but my situation is exactly the same as this unresolved issue on the (closed) ESRI forum:
I have a stream centreline ...
3
votes
1answer
134 views
2
votes
1answer
321 views
How can I resize pixel resolution after interpolation
I did kriging spatial interpolation using climatic point file. After doing interpolation, how can I resize the pixel resolution to pixel resolution of the NDVI data. NDVI image's pixel resolution is ...
1
vote
2answers
287 views
ArcGIS API Interpolation Functions
Does ArcGIS API provide interpolation functions, like if I want to interpolate from my own set of values?
Edit:
I know that ArcGIS provides functions for interpolation like IDW, Spline and Kriging ...
2
votes
2answers
640 views
Interpolating heights in DEM using ArcGIS API's in C#
I am new to ArcGIS and not familiar with it. I want to interpolate heights in a DEM file using ArcGIS? Is it possible?
Actually, I want to write a C# code that will read the height from DEM file for ...
11
votes
3answers
405 views
Modelling of rent prices - which interpolation method should I choose?
I have national dataset of ~1,4 million households. There I have information about rent, size (number of rooms and m2) and some additional characteristics of each household.
I'd like to use this data ...
7
votes
1answer
540 views
Partially update a raster (a DEM)
My todays question is: How to update an .img DEM in ArcView 9.3?
I do have DEM which need to be updated only if few parts. The area to be updated has been produced in separate DEM with Spline ...
9
votes
3answers
992 views
Interpolation for timeseries in ArcGIS
I'm trying to calculate average rainfall value from a number of points using Inverse Weighted Distance tool in ArcGIS 9.3.
My problem is that: each point has it own time series, therefore the ...
3
votes
3answers
525 views
How to use NASS county level crop data to estimate crop acreage in hydrologic regions?
National Agriculture Statistics Service (NASS) provides county level crop (Corn, Soybean, Sorghum, etc) data. I want to calculate crop acres on each subwatershed from the county based data. What is ...
7
votes
5answers
1k views
What type of interpolation should I use to visualize metal detection survey data?
I have about 500,000 points collected in a linear grid pattern over a 1 km2 area. The points were collected as part of a metal detection survey. Each point has X,Y and Coil Response mV (min -675.38 ...
