Once you identify the dataset you would like to download, there are a variety of formats you can use depending on the final creation you are making. Here is where you can find the downloads section on each dataset page.
This type of data is used to create maps. Each of the following file formats maintain location information and geometries in the file type. To open this file type you will need a GIS application.There are many application available. For people who like free software, we recommend using QGIS since it is mature and maintained open source software that is quite capable.
Shapefile (.shp) - The shapefile is a common standard for representing geospatial vector data. Developed and regulated by Esri as a (mostly) open specification, the shapefile format spatially describes geometries as either 'points', 'polylines', or 'polygons'. The shapefile is in fact a grouping of several files formatted to represent different aspects of geodata including:
- .shp — shape format; the feature geometry itself.
- .shx — shape index format; a positional index of the feature geometry to allow seeking forwards and backwards quickly.
- .dbf — attribute format; columnar attributes for each shape, in dBase IV format.
KML - Keyhole Markup Language is a file format used to display geographic data in an Earth browser, such as Google Earth, Google Maps, and Google Maps for mobile. You can create KML files to pinpoint locations, add image overlays, and expose rich data in new ways. KML is an international standard maintained by the Open Geospatial Consortium, Inc. (OGC).
Tiles (.wms) - Web Map Service (WMS) is a standard protocol for serving georeferenced map images over the Internet that are generated by a map server using data from a GIS database such as Data.TheThirdPole.net. Using this feature, you can link TheThirdPole's pre-designed data layers using a simple HTTP interface to request map images into your mapping system without the need to download data or manipulate the design.
More simply put, these file types describe data that is stored in a table such as in a spreadsheet. The most clear feature of tabular data is having rows and columns. Tabular data is useful for the creation of charts and graphs since you can analyize statistics within the data's attributes. It is important to note that all of the files downloaded from this site can be linked to spatial data since location coordinates and geometries are preserved in the spreadsheet.
Comma Seperated Values (.csv) - CSV is a common, relatively simple file format that is widely supported by consumer, business, and scientific applications. Among its most common uses is moving tabular data between programs that natively operate on incompatible (often proprietary and/or undocumented) formats. This works because so many programs support some variation of CSV at least as an alternative import/export format.
Excel (.xls) - is a file extension for a spreadsheet file format created by Microsoft for use with Microsoft Excel. XLS stands for eXceL Spreadsheet. Microsoft Excel files use a proprietary format for storing Microsoft Excel documents.Thus .xls is useful mainly for analysis within Excel and lacks the flexibility of use characteristic of .csv. LibreOffice Calc does support .xls and is free and open-source.
Want a picture of a layer from Data.TheThirdPole? You can download images in standard formats for integrating into your publication or website. However, it is important to realize that this only creates a picture of the data and not the base map.
Image (.jpg) - JPEG is a compressed image file format. JPEG images are not limited to a certain amount of color, like GIF images are. Therefore, the JPEG format is best for compressing photographic images. So if you see a large, colorful image on the Web, it is most likely a JPEG file.
PDF- Portable Document Format is a file format that provides an electronic image of text or text and graphics that looks like a printed document and can be viewed, printed, and electronically transmitted.