My favourite supervised classification method for land cover classification until now was the very popular Random Forest. Recently however, I stumbled upon the xgBoost algorithm which made me very curious because of its huge success on the machine learning competition platform Kaggle where it has won several competitions. Since I
Dear Sentinel-2 enthusiasts!
First of all, I would like to wish you merry christmas and happy holidays. I thought I will use my time free time inbetween family gatherings first of all for digesting delicious christmas cookies and secondly for writing a short post on how to download Sentinel-2 satellite
Today I would like to briefly introduce you to the Sentinel-Hub powered by Sinergise.
It is a very powerful and easy to use tool for the search, exploitation and visualization of Sentinel data and can be accessed under the following link: http://www.sentinel-hub.com
So what makes it so special? First of all
Hey there!
Sentinel-2 is a relatively new satellite and cloud masking still is a big issue with this sensor. There are many ways on how to get cloud free images of Sentinel-2A (hopefully 2B soon as well). Here is an overview on possible technologies you can use, as well as
Dear GIS-Blog.com Followers!
It’s January once again and GIS-Blog.com is celebrating its second birthday!
We would like to thank you for all your visits, views, clicks and comments and we are looking forward to the year 2017 which will bring the following new features:
Hey folks!
Today I am going to show you how to perform a very basic kMeans unsupervised classification of satellite imagery using R. We will do this on a small subset of a Sentinel-2 image.
Sentinel-2 is a satellite launched by the European Space Agency and its data is freely accessible
Today I am going to give you a short introduction into the Google Earth Engine and show you how to create a cloud free mosaic of Europe using Sentinel-2 data in just one minute! Yes, literally one minute!
The Google Earth Engine is a “computing platform that allows users to
Dear Remote Sensers!
As ESA announced on May 2nd (so definitely no Aprils Fool) there will (finally!) be L2A products available for download on the Open Access Hub:
The data access has been opened as of 2 May 2017, while products with sensing date from 28 March 2017 onwards will be
Hey remote sensing enthusiasts!
It’s been about one week since the start of the second Sentinel-2 satellite. ESA anncounced today very proudly that Sentinel-2B already delivered it’s first images starting somewhere over the baltic sea, going over eastern europe and ending in Lybia. Here a snapshot from the coast of
Happy new year 2017!
It’s January 1st and I made the new years resolution to post more this year. 🙂 So here is a short tutorial on how to download SRTM (Shuttle Radar Topography Mission) 90m resolution data (3 arc seconds) for an entire country using the {raster} and {rgeos}