Tagged Questions
0
votes
0answers
25 views
merging and seperating data
I have a census block shapefile and I want to separate the data according to their towns or village. The towns/village is a separate shapefile. Any help is greatly appreciated. I am using ARCingo ...
0
votes
0answers
39 views
Where to find Data with site that have hazardous, toxic or radioactive substances?
Does anybody know where to find data that lists the location of sites that have hazardous, toxic or radioactive substances?
I'm working on a HUD project and need to be able to find out if sites for ...
8
votes
2answers
126 views
How to efficiently (programmatically) determine whether two datasets have / don't have identical content?
Given:
a geodatabase A that contains 100 datasets named a1 .. a100
a geodatabase B that contains 100 datasets named b1 .. b100
I want to programmatically (*) determine for each dataset pair (ai, ...
4
votes
3answers
65 views
Where can I find decadal climate and ocean data for Europe?
I would like to find decadal climate and ocean data for Europe that I can download and use directly in ArcGIS. Specifically, I am looking for mean annual temperature, sea surface temperature, and ...
2
votes
1answer
34 views
OSGB conversion error
So I am using ArcGIS 10 and trying to work in British National Grid. My shape file is in WGS84 UTM30N. By chance I passed the shape file across to a colleague and we both transformed into BNG.
When ...
2
votes
1answer
150 views
Question about sizes of input rasters for raster calculation
To calculate any formula (conditional statements/relational operation etc) in the raster calculator in ArcGIS using two different sources of raster images, I'd like to know input rasters must be the ...
1
vote
0answers
107 views
Describing weather data in ArcMap area solar radiation analysis
I am writing up the methodology of the analysis I did on solar radiation availability for a city. I used the tool 'area solar radiation' with ArcMap 10, using the time configuration ...
2
votes
0answers
52 views
Advice on colour balancing a SPOT5 ArcGIS Mosaic Dataset
All,
I'm working on a project using satellite imagery of a large braided river. I've been provide lots of SPOT5 images (that overlap). I've created a geodatabase, created a mosaic dataset, added the ...
3
votes
1answer
63 views
How to create a multimodal network?
How to add waterways and railroads without turn restrictions into the previously created street network dataset with turn restrictions, in order to create a multimodal network?
For a university ...
3
votes
1answer
99 views
Simplest way to share map and data with ArcGIS 10.x and 9.x users
What is the simplest way to share a map and data with both ArcGIS 10.0 and 9.3 users, portably?
This question could be rephrased as "Instead of waiting for Esri to (maybe) implement backwards ...
2
votes
1answer
35 views
FEMA LOMA Data Availability?
Does anybody know where there might be some good/current FEMA data? I am interested specifically in the LOMA data for Florida. I have found a WMS Service that is hosted by FEMA but I'm having trouble ...
3
votes
1answer
221 views
Download Dataset From ArcGIS REST Service
Looking at this information page for a dataset hosted on esri.com:
http://fema-services2.esri.com/arcgis/rest/services/2012_Sandy/ImageCat_NLT/MapServer/layers
Trying to figure out how I can get ...
7
votes
2answers
225 views
Where can I find a shapefile basemap for the Indian Ocean?
I need to plot point data over a basemap of the Indian Ocean. Can anyone tell me where I can find such a basemap in shapefile format? I use ArcView 9.
Thank you.
10
votes
1answer
201 views
Open-source software for managing terabytes of different formats of geospatial data?
I have a problem that I am sure many GIS Teams or Departments have which is how to find, keep track of and manage multiple different datasets from multiple sources. I have read the responses from a ...
14
votes
2answers
469 views
What is the best practice for data management? [duplicate]
I have always been curious how other folks are storing their spatial data. Outside of an enterprise environment where much data is stored in enterprise geodatabases, is it better to store data per ...
4
votes
3answers
233 views
How to test whether two countries are adjacent?
I have an interesting question:
Is there a dataset by which I can use to test whether two countries are adjacent? For example, if inputs are Mexico and U.S., they are adjacent; if inputs are England ...
3
votes
2answers
99 views
Is there any site which provide classified image download for soil,vegetation or water resources?
(its particularly for indian states,i need.....,but kindly quote if any other info you have)
the raster data may also work for me in above aspects.
3
votes
0answers
396 views
How to load data programmatically from shapefile into feature class (geodatabase)?
Can some Genuis here help me programmatically (using python and comtypes) load shapefile data in to an existing geodatabase (feature class). The attributes of the shapefile has to match with the ...
2
votes
3answers
353 views
Looking for high resolution (1m or better) aerials for Turkey
Would prefer free but under a couple hundred dollars is also doable.
It would be nice to have actual tif, sid, etc. files but a WMS would also work... using ArcGIS 10
Would also consider any of the ...
1
vote
0answers
65 views
IFSAR bad stripping in some spotting areas
I have a co-worker that was working on do some analysis on IFSAR and he clips them to quads. He said that there are 6 quads that came up bad stripping.
Is there a way around to clean it up the bad ...
0
votes
0answers
350 views
Problem exporting data after a join [closed]
I haven't a license for Data Interoperability Tools in ARCGIS10, but I need to add a quick export function in my model. This is done with the Model Builder to export the layer after joining with a ...
2
votes
1answer
799 views
Why is ArcGIS crashing when I try to load .adf raster data?
I am pretty new to GIS, so forgive me if this is a stupid question. I downloaded a bunch of land cover files from USGS seamless warehouse of Florida. Every time I try to 1) view the .adf file (which ...
2
votes
0answers
125 views
Question on QA/QC error list
As I am working on reviewing my soils spatial data, and I am doing my QA/QC I placed a point layer to check for errors. I add the field column to mark the error and state the error.
I recently ...
2
votes
1answer
560 views
How can I transform GCS_WGS_1984 to GCS_North_American_1983?
I need to convert a GCS_WGS_1984 data set to NAD_1983_UTM_Zone_14N. What transformation should I use?
1
vote
2answers
87 views
Split a Quad to 1:7,500 Question
Here I have 1:24,000k quads. I know how to use the word split toolbox. What I would like to split 24,000K to 1:7,500 or 6,000k. Is there a way around for me to do that ?
For example,, if you have one ...
1
vote
1answer
834 views
Go to X,Y dialog box
If someone gave you a x,y coordinate numbers he/she got from. I put the numbers in the X,Y events on my ArcMap and they are in Meters numbers. We entered the number into the x,y dialog box. The ...
5
votes
2answers
165 views
Location data for Nuclear Power stations in France
As it says on the tin, does anyone know a place I can look at, download, location data for Nuclear power installations in France? I believe it is well known data, but I cannot find it anywhere.
...
1
vote
0answers
96 views
How to delete classes that cover only a small area? [duplicate]
I want to delete pixels that have a small area of classifying in raster and vector images in ArcGis software.
2
votes
1answer
248 views
Need to programmatically create Barriers in my Network Dataset
I have the following C# code to create a Network Dataset layer that I can bring into ArcMap. However, even though I am able to create a Route from the ND, I am not able to create Barriers of any kind ...
2
votes
1answer
414 views
Seeking shapefiles of business locations
Does anyone know where to find shapefiles of businesses such as grocery stores or gas stations?
Thanks!!
4
votes
1answer
175 views
Migrating Feature Datasets from ArcSDE to postgis
I am currently planning the migration of a database from ArcSDE/ Arcmap to postgis / Qgis. The data is stored in raster catalogues and feature datasets. Is there an equivalent to feature datasets ...
2
votes
2answers
85 views
Where can I find Stream codes for the State of Utah?
Does anyone know where I can find Stream (rivers, waterbodies) codes for the State of Utah?
Thank You.
6
votes
5answers
1k views
What is the hierarchy of features in ArcGIS? Is it different in other software?
first post - new to GIS.
My understanding of shapefiles is that they are (contain?) featureclasses, that contain features (points, polylines, polygons). Is there a clear hierarchy for these files. ...
4
votes
3answers
619 views
How can i transfer data from a spreadsheet into a shapefile?
I am looking at Deprivation in the UK and there is some good data in the form of spreadsheets on this website http://www.communities.gov.uk/publications/corporate/statistics/indices2010
I would like ...
1
vote
3answers
576 views
How to match Census Block Groups from different decades to show percent change?
I know for Census Tracts and Blocks there are Relationship files, but what is the best way to match Census Block Groups from different decades to compare change?
2
votes
2answers
2k views
How can I export county level data in a .shp file to a text (csv) file in ArcMap?
I have a shape file created as per the answer to my previous question, which includes county level means for each county in the US.
How can I now export this data in a .csv file, e.g. with just the ...
1
vote
2answers
292 views
Are there sources for obtaining pre-made KML data from Google?
I have been asked to investigate methods for obtaining KML files. All I know so far is that it is a format based on XML that Google uses to format their maps (or the metadata). However, are there ...
7
votes
3answers
448 views
How can I make a county-level shape file from a set of points at 30 x30 km spacing?
I have a data set in csv form, like:
latitude, longitude, value
-45, 45, 10
....
I would like to calculate county level means from these data, using either ArcGIS or R+grass.
I have the ArcGIS USA ...
1
vote
5answers
3k views
How to convert a double field to a string?
I would like to convert a column in a spreadsheet from a double to a string so I can join the data with a shp file. What is the easiest way to do it?
1
vote
1answer
139 views
Need of an imagery for Mexico
I am doing Rapid Watershed Assessment for my agency and I am responsible for the Southern New Mexico and northwest Texas. I have 2 NAIP added to my ArcMap already and using it with the "Add Image ...
5
votes
3answers
442 views
How do I render data quicker in Arcmap?
Is there a way around to speed up the data into ArcMap ? When I converted the raster to polygon and some data would load up quicker and some other load slow. I am wondering if I could add the spatial ...
3
votes
2answers
722 views
Fastest way to create an ESRI Grid and populate cell values?
In terms of processing speed what's the fastest way of creating and then adding values to a raster?
The values will originally come from ASCII files which can be about 500MB in size - ideally I ...
3
votes
2answers
158 views
Data storage shared with co-worker [closed]
I would like to ask anyone out there who knows of a good free website that allows me to upload my gis data files to co-worker. Each project I am working on are quite large and would need to upload 1 ...
2
votes
1answer
115 views
Where can I obtain 3D roadside features for UK?
I am doing some work on sight distances and I need a map or whatever of the UK that contains roadside features (road signs, trees etc) as well as the road features(road centreline etc) so i can ...
6
votes
5answers
2k views
Is there a way to view KML natively in ArcMap?
Answering this question: How do I import/export KML to ArcGIS Desktop? raised another one. There are loads of tools to import/export kml/kmz. Are there tools available for native viewing of KML in ...
13
votes
4answers
1k views
Data naming convention - starting with a number
My company uses ArcGIS and has a project and data file naming standards in place and (for the most part) followed. Something that has always bothered me about he naming standards is that it mandates ...
3
votes
3answers
885 views
Advice on using CityGML data and GIS
I'm looking for advice on how best to use the CityGML data-structure and GIS (preferably ArcGIS/QGIS). I've read through their website and wiki and saw a list of software here that can be used to view ...
2
votes
1answer
549 views
How to process topographic survey data in ArcGIS?
I am interested to find out how others process topographic survey data in ArcGIS. Often I am only given a text file or an Excel spreadsheet containing XYZ points and simple attribute information ...
9
votes
7answers
603 views
What is the best way to visualize multiple large LIDAR tiles?
I want to load approximately 10 large LIDAR tiles for analysis. I have tried using ArcScene but it appears there is a limit on how much data ArcScene can handle at one time. Each tile is 65-90MB in ...
