Digital Geography

ArcGIS arcmap builder data postgis postgreSQL QGIS query SQL Tutorial

PostgreSQL and PostGIS: A brief introduction

You probably seen this already (maybe on your very own PC as well): A folder with shape files. Well we’re living in the 21st century and I do have and use those folders still. After a talk of Sebastian Meier at Maptime Berlin I was convinced and started to work with a databases instead of folders. So let me show you how to install PostgreSQL along with PostGIS on Ubuntu and Windows, how to get data into it, import OSM data and how to connect it with QGIS/ArcGIS.

arcmap curvature DEM height hillshade quality raster Slope SRTM SRTM1

Short Announcement: “Quality Check” on SRTM1

Well, I was expecting this. Damn, those new SRTM1 raster files provided via EarthExplorer by the USGS are sweet. You can download them right away just by creating an account on EarthExplorer and you can get worldwide coverage except the middle East (political reasons?). How is the data quality? Some short insights:

10.3 64bit ArcGIS arcgis pro arcmap ESRI professional release

ArcGIS 10.3

Yesterday the new major release of worldwide leading GIS solution ArcGIS was released: 10.3. Most users upgraded already to the version 10.x and enjoyed Python support as well as other enhancements. So what is to expect from this new version? 64 bit support, Twitter integration, free support? Let’s have a look!

ArcGIS arcmap ESRI Going spatial MOOC SAR udemy week4

ESRI’s MOOC Going Spatial: Week 4

This week it is all about topology, proximity and combining logical and spatial queries at ESRI’s MOOC. Furthermore you will get to know path analysis and what are different ways on measuring distance. This content will take aa central part in the two hands on with arcgis online.

ArcGIS arcmap autation automate builder creation ESRI Model ModelBuilder step2step steps Tutorial

ArcGIS tutorial 2: the ModelBuilder

ArcGIS is a geographic-information-system (GIS) developed by ESRI. Being widely used and the sheer amount of functions and add-ons are maybe the important causes for being a big-player at universities as well. Therefore we will present you some basic tutorials for learning and enjoying ArcGIS: Tutorial 1: ArcGIS tutorial 1: how to georeference a map?! Tutorial 2: the ModelBuilder objective Create a model with the ModelBuilder to automate different workflows in ArcGIS. Therefore we will connect input-data with different tools in a model diagram. what do you need ArcGIS 9 or 10 time effort depends on model complexity. minimal 10mins