Monthly Archives: September 2014

China’s GlobeLand30 LULC Dataset Released

China’s GlobeLand30 LULC Dataset Released

Announced last week is a newly available and free global land use land cover dataset at 30m spatial resolution. Here’s the official announcement: On the occasion of the upcoming UN climate change summit, Chinese government donates the GlobeLand30 datasets to the United Nations.

From the announcement: “For the past four years, China NASG has developed and prepared GlobeLand30, the world’s first global land cover datasets at a 30m resolution, for the years 2000 and 2010. The datasets are organized by ten major land cover classes and provide essential high resolution land cover and change information for climate change studies, environment monitoring, resource management, sustainable development, and many other societal benefit areas.”

You can head to the OpenLandService website to download the GLC30 – GlobeLand30 LULC dataset.

Generate contours dynamically with a new raster function!

Generate contours dynamically with a new raster function!

Users of elevation data or other continuous data such as temperature or air pressure, take note! A new custom raster function has been made available for you to add into ArcGIS (version 10.2.1 or later) Desktop and/or Server. This can be applied to generate raster contours on-the-fly from single rasters, mosaic datasets, or for client selection on image services.

Like other raster functions, the contour function is applied at the resolution and within the extents of the current view. A key capability of this implementation is the contour smoothing that can be used to remove jagged contours and artifacts that are common with highly accurate data. The function also includes an option to dynamically define the contour interval based on visible data range, providing coarse contours when zoomed out, and detailed contours when zoomed in. There is also a filled-color contours option, and the ability to export a smoothed raster if the user wants to generate vector contours with the same smoothing – the smoothed raster would be processed using the existing “contour” geoprocessing tool within ArcGIS Desktop (Spatial Analyst).  Screenshot examples are visible below.

This function is not currently built into ArcGIS; a download to install this function for ArcGIS Desktop and Server versions 10.2.1 and 10.2.2 is available here:  http://esriurl.com/ContourFunction.  Note that the contour function can be applied as a “Server Raster Function” to enable light client applications to activate and control the server-side rendering.  For Help regarding how to add an optional function onto an image service, see ArcGIS Help here.

Free JetBrains IDE & .NET Software for students

JetBrains is offering their IDE and .NET Tools Software for Free (valid for 1-Year) with a valid .Edu email address.

  1. Click here, scroll down and click on the “Apply Now” button
  2. Enter your name and .Edu email address in the space provided and click “Apply for Free Products”
  3. You will receive an email to activate your educational license. Upon activation, you will need to create a JetBrains account.
  4. After downloading and installing the software, follow the on-screen prompts and simply sign in with your JetBrains account. A license key is not required.

Includes:

  • IntelliJ IDEA
    • Java IDE
  • ReSharper
    • Productivity tool for .NET developers
  • AppCode
    • Objective-C IDE
  • PhpStorm
    • IDE for Web & PHP
  • PyCharm
    • Python and Django IDE
  • RubyMine
    • IDE for Ruby and Rails
  • WebStorm
    • Smart JavaScript IDE
  • dotCover
    • .NET Code Coverage Tool
  • dotTrace
    • .NET Code Coverage Tool
  • dotMemory
    • .NET Memory Profiler

SRTM 30-m Global DEM released by NASA

U.S. Releases Enhanced Shuttle Land Elevation Data – NASA Jet Propulsion Laboratory.

Elevation data at the highest possible resolution from NASA's Shuttle Radar Topography MissionElevation data at the highest possible resolution from NASA’s Shuttle Radar Topography Mission in February 2000 are now being released for the first time for most of the African continent. This color shaded relief image shows the extent of SRTM digital elevation data for Africa. Image credit: NASA/JPL-Caltech/National Geospatial Intelligence Agency
› Full image and caption

High-resolution topographic data generated from NASA’s Shuttle Radar Topography Mission (SRTM) in 2000, previously only available for the United States, will be released globally over the next year, the White House announced today. The announcement was made at the United Nations Heads of State Climate Summit in New York.

This initial public release of topographic data for Africa will help empower local authorities to better plan for the impacts of severe environmental changes such as drought, glacial retreat, inland flooding, landslides and coastal storm surges. Datasets covering the remaining continents will be made available within one year, with the next release of data focusing on Latin America and the Caribbean.

Lower-resolution SRTM topographic data having 90-meter (295-foot) pixels were released publicly in 2003 for many parts of the world, providing a global standard for many applications. The new data increase the detail to 30-meter (98-foot) pixel spacing, now revealing the full resolution of the world’s landforms as originally measured by SRTM. Read the rest of this entry

Whitebox Geospatial Analysis Tools v. 3.2.1 Now Released!

Thank you for releasing the new version with so many new geoprocessing tools! The Depression breaching Tool is especially interested to me. Will test it soon.

Whitebox Geospatial Analysis Tools

I am very pleased to announce the release of version 3.2.1 of the free and open-source GIS Whitebox Geospatial Analysis Tools. Although I was not able to accomplish all of the development tasks that I had set out to do over the summer, this version does incorporate numerous improvements and additions (see below). I hope that you enjoy the new version. As always, I welcome any feedback you may have, including suggestions for future features and tools and feedback on general usability. Bugs and other errors can be submitted using the ‘Report An Error‘ found within Whitebox’s Help menu. For questions regarding specific applications, please consider subscribing to the Whitebox Listserv which can be found at the following site:

http://www.lsoft.com/scripts/wl.exe?SL1=WHITEBOX-GAT&H=LISTSERV.UOGUELPH.CA

The following modifications have been made:

  • Added the Retrieve SRTM DEM Data tool. This tool will download SRTM DEM tiles from the USGS FTP site, import the tiles into Whitebox GAT…

View original post 488 more words

The Open Source Remote Sensing and GIS Software Library (RSGISLib)

Found a new open source software library (RSGISLiab) using C++ and Python, which consists of 16 C++ libraries and over 300 user commands.  All C++ source codes are available online.

http://www.rsgislib.org/

https://bitbucket.org/petebunting/rsgislib/src/bf7933996822?at=default

http://www.sciencedirect.com/science/article/pii/S0098300413002288

Highlights

  • An open source software platform for the processing of remotely sensed and GIS datasets.
  • Support for large scale processing on HPC systems.
  • Scalable segmentation and image-to-image registration algorithms.
  • Close links with other software to be used in combination rather than replacement.
  • A platform for research to be made available to the community into the future.
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