Questions about obtaining data.

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3
votes
1answer
72 views

Which remote sensing satellite is best used for chlorophyll mapping?

Location of my research are reservoirs which have an area of 47 and 62 km2. I need a better image resolution than Landsat(Pan).
29
votes
7answers
14k views

Most Up-To-Date Source for US Zip Code Boundaries

I was just wondering what the most up-to-date source for US Zip Code boundaries would be. My first thought was TIGER, whenever that comes out, but then I thought that the Postal Service might be a ...
0
votes
1answer
15 views

urban and rural areas of the UK

Just curious, is anyone aware of any (commercial) data sets that divide the UK into urban and rural areas based on admin data (e.g. outcode postcodes) and/or physical data (e.g. eastings and northing ...
8
votes
3answers
3k views

Ordnance Survey grids - download or generate?

Does anyone know a source from which to download vector UK Ordnance Survey grids at varying resolutions? Or failing that, a tool that can create an OS grid at a specified resolution? There are plenty ...
14
votes
3answers
864 views

Is there an automatic function in QGIS to package all files in a project for transferability?

In my project, I use a lot of geodata from different directories. Now I want to give the QGIS project to a colleague (eg on a CD). Is it possible to copy the shapes from different directories ...
16
votes
3answers
5k views

How to download the entire ASTER GDEMv2 dataset?

On October, NASA released the new ASTER GDEM global dataset (30m) and I have been wanting to get my hands on it. The only problem is that it takes forever to download and I do not feel like drawing ...
1
vote
0answers
19 views

Legend of CORINE land cover in ArcGIS 10.x layer file

I am looking for the legend of Land Cover (Corine Land Cover) for ArcsGIS 10.x. as a layer (.lyr) file. I want to symbolize the classes without setting the RGB color values one by one; especially for ...
0
votes
1answer
22 views

Finding British Columbia township grid?

I'm looking for a shapefile of the Dominion Land Survey township grid for British Columbia. Where might I find this data?
0
votes
2answers
51 views

Polygons of countries including territorial waters

Where can I get polygons (multipolygons) of all countries of the world including the territorial waters of the countries? OpenStreetmap displays these areas but I can't find an extract of this ...
4
votes
2answers
70 views

How can I identify lines that intersect a certain raster layer area?

How do I identify certain roads ( of a line shapefile) that intersect with a layer that is produced from the reclassify tool (for raster data)? I am trying to identify which roads specifically are in ...
2
votes
1answer
21 views

What does number of shapes does not match the number of table records mean when trying to repair a data source?

I'm trying to repair a data source on arc from a .shp file. Every time I match it with the correct .shp file it display an error message stating "Number of shapes does not match the number of record ...
0
votes
0answers
20 views

Zonal Statistics as Table having problems with Mosaic Dataset

I have a mosaic dataset of forest cover around the globe for the year 2000 (each cell's number contains the percent of forest cover in that area). I have randomly selected a large number of points ...
0
votes
0answers
38 views

Power transmission lines in India- GIS shapefiles [closed]

I am looking after the GIS shapefile data of the transmission grid in India for a related analysis in ArcMap. To illustrate, the GIS product I am looking for is something like this ...
0
votes
2answers
26 views

Solar potential or irradiation GIS data for India

I am looking for solar irradiation data for India in a gis format. Like the ones on the link below: http://www.arcgis.com/apps/OnePane/basicviewer/index.html?appid=bf886ca471a54e2c9127a54f60d4ca27
1
vote
1answer
51 views

Where can I find shapefiles for OECD Regions?

Does anyone know where shapefiles for OECD (Organisation for Economic Co-operation and Development) Regions might be found? The regions are defined in this document: ...
0
votes
0answers
73 views

Los Angeles public parking lot polygons?

So, I'm looking for some relevant data to incorporate into my map, and one of them is public parking polygons. Is there such a .shp file with these data?
1
vote
1answer
47 views

Error in executing commands in GRASS GIS

I'm using Grass 6.4.3RC2. I have a problem because when I execute the command: r.radcov csv_file=cell_list_hataDEM_umts_amc_testTEST.csv dem_map-AlbSRTMdem@PERMANENT clutter_map=AlbClut@PERMANENT ...
1
vote
3answers
59 views

Source for wind energy potential for India in GIS format

I am looking for wind energy data (they can be wind speed at any height or wind energy potential) for India in a GIS format. Like the data displayed the link below: ...
4
votes
1answer
67 views

Which system of units does the unit 'degree' belong to?

Let us say that I would like to store latitudes and longitudes like this: lat 35 degree long 80 degree Which system of units does the unit 'degree' belong to? It is not really a SI unit nor a ...
1
vote
1answer
23 views

Where to download Mars DEMs and landcover?

I'm looking on the websites of the Mars Global Surveyor and the NASA sites, but all of the data is in jpeg or img form. Does anyone know where to find useful raster data sets for elevation and land ...
1
vote
1answer
273 views

Where to Dowload Village layers for India with census 2011 information?

Does anyone know where I could download a layer of all villages in India together with their populations (hopefully from the 2011 census)?
1
vote
1answer
158 views

Google API for Boundary coordinates

Is there any Google API (or any other) which can provide boundary information (i.e. Lat, Lng) for a particular location. Location can be a city, district or a region with in a city. For Example Dammam ...
2
votes
1answer
61 views

Can't import certain tables from SQL Server to QGIS

This is a list of 193 zip codes and their geometries that do not import in QGIS. This is a list of 999 Census Block Groups and their geometries that do import in QGIS. This is the Add MSSQL Layer ...
0
votes
1answer
27 views

Protected general and admin settings in GeoODK app

I was wondering how to prevent the user to change the general and admin settings of the GeoODK (android-collect)? I mean to be protected with a password, for example. I've tried to go to settings > ...
5
votes
1answer
720 views

How to extract bounding boxes of cities from OSM?

For simple geocoding purposes I want to extract all cities from a single country of openstreetmap. They only queries I want to do are: ZipCode -> (List of) BoundingBox of City/Village ...
7
votes
5answers
8k views

Source for GeoJSON data for the US

Does anyone know of any good sources for US data (counties, congressional districts, etc) in GeoJSON format? Has anyone converted public-domain shapefiles/sources to GeoJSON that they would be willing ...
6
votes
2answers
763 views

Where to find 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?
8
votes
5answers
3k 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 ...
4
votes
5answers
2k views

Where can I find free Bathymetric data for Indian Ocean?

I am looking for bathymetric data, to place in a map of India for visualization only. I don't really need very high resolution data, since the the map will be at a very small scale: Maybe 1:1Million ...
1
vote
2answers
257 views

Rasters added to mosaic dataset only display at large acale

I have a set of 357 rasters in .jp2 that I've added to a mosaic dataset. All but 7 of them display properly, but the 7 only display at larger scales, around 1:6500 and under. I've tried adding them ...
1
vote
0answers
32 views

How to get the elevation of the complete sea floor?

I am not a cartographer, I am an analyst-programmer, I know nothing about SRTM, DXF, PostGIS, QGIS... I just saw those names in other questions... Is there a quick guide where I can learn about this? ...
0
votes
2answers
66 views

How to create/obtain district data for Singapore?

I am newbie in GIS and have started using QGIS for my purpose. My purpose is to map all districts of Singapore and create a Shape file and get GeoJSON details for all districts. I am not able to find ...
0
votes
1answer
71 views

Ward maps for Indian Cities?

i am looking for maps or shapefiles of ward boundaries of cities in india, it has been arround three days since i have been searching for them, but got very few. Please help me if somebody knows ...
4
votes
4answers
2k views

Free radar (SAR) satellite data

I'm looking for free (non-commercial use) sources of radar (SAR) satellite imagery. Does anyone know of sources?
0
votes
0answers
11 views

ISO 3166-1 + ISO 3166-2 data plus lat long border data

Could anyone please be so kind and point out a commercial/reliable source of up to date ISO 3166-1 + ISO 3166-2 data plus lat long border data?
2
votes
0answers
21 views

Trimble pathfinder data dictionary default value exclusion

Is it possible to have a numeric attribute in trimble pathfinder without having to use a default value? I am trying to make a numeric attribute compulsory to fill in BUT because the data dictionary ...
1
vote
2answers
76 views

What are my options for geocoding a large dataset for free? [duplicate]

I'm a software engineer new to GIS and mapping systems. Recently I have been playing with ideas for applications built from the Center for Medicare/Medicaid Services 2012 cost dataset. It consists of ...
0
votes
3answers
90 views

Looking for Employment Density Data: Employees per unit of area by industry by county (USA)

What I'm looking for something like this: http://www.bls.gov/cew/ew07fig20.pdf For those that can't see it, the second page of the PDF has a map of Employment density within manufacturing by county, ...
2
votes
1answer
6k views

How to add points to a point vector layer - QGIS

I have a point layer with multiple data points in QGIS, but I want to add some extra data points to it and adjust some info that we missed because the ground was wet and we needed to go around it. I ...
0
votes
1answer
38 views

Insert rows into CartoDB from code

I have a simple web page where i show my cartoDB map and a dataset. I want to know if there is any way to insert new rows into my cartoDB dataset from code, so external users can add points to the map ...
0
votes
2answers
151 views

Where can I purchase Points of Interest? (USA)

I have thousands of POIs with addresses and they are geocoded. The lat longs are on the road. I have Tele Atlas POI data, but it also shows the locations closer to the road. Is there any ...
8
votes
2answers
258 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, ...
3
votes
1answer
3k views

Exporting .jpg files from data driven pages in Arcmap

I have generated about 90 maps through data driven pages(ArcGIS 10.0). I now want to export them as .jpg files in either landscape or portrait format. I tried python but it is not working, it worked ...
0
votes
0answers
26 views

3D building data for London

Any tips on where I can find 3D building data for UK/London, preferably LOD2 (Including roof structures)? I am aware of the Virtual London dataset but I would like a more recent one.
4
votes
2answers
571 views

Where can I find Ethiopian electoral constituency and district (woreda) boundaries data?

I am a PhD student in Development Studies in Oxford. I'm trying to find a map of the Ethiopian electoral boundaries. These are not the same as the district (woreda) boundaries - districts can be in ...
0
votes
0answers
19 views

How to visualize GPS dataset fro MysQL database and select dense areas

I am using Geolife dataset for simulation. I followed the pre-processing data tutorial to store all .plt files in a mysql database and export it in a .csv file. However, I want to select the ...
0
votes
1answer
38 views

Latest shapefiles of Indian states

I need shapefiles of Indian states that of 2011 which has almost 671 districts of India. Can anyone please help me?
1
vote
0answers
38 views

“Official” delineation of North American mountain ranges

I need to subset mosaics of remotely sourced data to the extents of several prominent North American mountain ranges, starting with the Sierra Nevada. After searching for the boundaries of the range ...
5
votes
5answers
1k views

Where can I find municipal-level administrative boundary data for Poland?

I am looking for municipal-level administrative boundary data (NUTS 5) for Poland. Since it is public information, I thought the data would be readily available, but I can't seem to find it anywhere. ...
1
vote
0answers
27 views

Free heightmap dataset for Kraków, Poland?

Is there a freely available (governmental?) heightmap dataset for Kraków city (in Poland) with horizontal grid ~5m (or better) and vertical resolution ~ +/- 0.1m? Ideally, it would include building ...