Digital Geography

First images from recently launched Sentinel 2 satellite

The earth observation satellite Sentinel-2 with Sentinel-2A and Sentinel 2B was launched on June 23rd 2015 from space centre Kourou in French Guiana. The mission is part of the Copernicus mission by ESA. The liftoff was recorded by ESA and can be watched here. Sentinel will be a complement to the multispectral satellites of the Landsat mission and SPOT. All observation systems in combination reveal a higher temporal resolution by shifted orbits and large stripe widths (Sentinel: 290km). Sentinel has a repetition rate of 10 days, Landsat 8 of 16 days but in combination with Landsat 7 a 8 day…

Maps of “Out of Eden Walk” by Paul Salopek (National Geographic)

Today I had the chance to attend a lecture by Paul Salopek in Tbilisi, Georgia. This lecture took me to the idea to write a short review about Paul Salopek and his project here on Digital-Geography because he mentioned several times that mapping his journey is one of his main goals. Some would wonder now: Which journey? – I’ll tell you what’s about: Paul Salopek is a journalist of National Geographic who is doing an amazing project at the moment. He is walking from the birthplace of humanity in Ethiopia at the pathways of human spreading around our globe for more…

SMAP – “Soil Moisture Active Passive” generates high resolution soil data

Since we are still in the International of Year of Soils , another Digital Soil Science post is ready. Some of you might already know that I’m addicted to soil. As a guy who works in the field of soil erosion modelling, any kind of soil data is interesting for me and some are quite relevant. Especially soil texture and soil moisture are very crucial values about predicting soil stabilization. I showed a global soil database in a previous post, which contains many high resolution soil data. But guess what: Some more soil data is coming. This time the datasource is…

SRTM-1 (1 Arc second) now available with large global coverage

With this post I would like to come back on a topic from September 2014. In this blog post on Digital-Geography I announced that from September 2014 until September 2015 high-resultion SRTM-data will be provided for free by the USGS. We also announced the estimated release dates for certain regions around the globe.     After checking the progress of the release in EarthExplorer, I realized that the release is proceeding much faster than expected. Till this day, only Norhteast Africa is missing. Parts of Canada, Russia, Greenland, Scandinavia, Artica and Antarctica are missing due to the SRTM coverage limit of…

International Year of Soils 2015 – Summarize of Soil content

Here comes another more or less off-topic post on soil science because I realized that the feedback for the last two soil related contents about global soil data and soil atlas was quite surprising. So it seems like that there are some soil scientists or at least digital geographers with an interest in soil science among us. This post is related to the upcoming YEAR OF SOIL 2015 which was oficially initiated on December 5th, the World Soil Day. In Germany, the upcoming german Soiltype of the year 2015 will be “Pseudogley” after celebrating the so called “Weinbergboden” in 2014.  …

Short Announcement: Webinar “Get started with CartoDB” on 20/11/2014 1PM EDT

We announced some surprises of CartoDB last week, especially that the map views are not anymore limited as well another post last month, that CartoDB opens some restrictions for usage in classrooms and universities as well. This could be very straight forward and promising for students as well for professors. If you every wanted to try working with CartoDB which is going to be more userfriendly through the new announcement, here comes your chance for a first introduction.     Tomorrow, Thursday 20/11/2014 at 1PM EDT (time zone converter), The webinar was recorded and can be found here. CartoDB will give…

Free Global Soil Grids at 1km resolution

I would like to introduce you the newly global coverage of soils grid at 1km ground resolution (online since August 29th 2014). The dataset is funded and provided by ISRIC. What attributes does the data contain? All of you who are working on soils know the difficulty to find datasets with reasonable soil attributes like soil type and different soil properties. Even 1km ground resolution isn’t the best choice for many studies and calculations the data can be used for different purposes like erosion modelling, organic contenct calculations, textur comparison and many more for big areas like europe and so on.…

Announcement: Realease of worldwide high-resultion SRTM-data (30m)

The White House announced on September 23th during the United Nations Heads of State Climate Summit in New York that they are going to release the high-resolution images of SRTM globally. Until now, the high-resolution imagery were only available for US-areas. All other countries had lower resolution imagery. Due to this release the 30m x 30m imagery will be available globally and substitute the 90m x 90m data. After its release the data will be accessible on EarthExplorer by the US Geological Service (USGS). Unfortunately they didn’t announce an exact release date (only “will be released globally over the next year”). That…

Summary of the “Geodesign” MOOC PennState University

Antoher 5-week MOOC came to it’s end and therefore I like to write a short summary about it. I attended the MOOC “Geodesign: Change your World” created by PeenState University at the MOOC platform Coursera.org. Before the course started I expected some new inputs about methodologies and practical working on geodesign questions but overall the course was more an introduction into the topic about Geodesign and the development of Geodesign work. It was more a theoretical lecture supported by case studies but with less practical work for the students. In my opinion the course is very interesting for (human) Geographers,…

Interactive Space Image Map of ISS-Pictures

The Sojus TMA-13M started on May 28th 2014 from Baikonur to bring the German Alex Gerst, the Russian Maxim Surajew and the American Reid Wiseman to the ISS (International Space Station). Besides the task of the crew to make some experiments etc. on ISS, they show the public how vulnerable and beautiful our blue planet is. There are different ways they try to do it: Regular public calls and interviews to the crew members bring the earth population in contact with the members. If you’re following one of those members on Twitter or Facebook I’m sure you’re impressed by the pictures…

GIS4Geomorphology – Blog recommendation

Since I’m working mostly with GIS and Geodata for Physical Geography (Soils, Geomorphology, Climate) I came across a very precise and recommendable Blog by Skye Cooley which I would like to present in the following lines: GIS4Geomorpholgy is a blog specified on different GIS purposes of geomorphologists. The topics of the blog covers Terrain Analysis, Soil Erosion Calculations, Hydrology Modelling and a lot basic entries about the use of Geoinformationsystems.

Advanced access to free climate data for Germany of the Climate Data Center

Since July 1st 2014, the Deutscher Wetterdienst (DWD) eased restrictions for the usage of climate data and provides users with a big dataset of free climate data for Germany. You can obtain the data, using the FTP-Server of the Climate Data Center (CDC). The following data in the following resolutions and formats are ready to download for free: measured Paramater at the DWD-Stations for climate in hourly, daily, monthly and annual resolution and phenology in annual resolution as txt derived Paramater at the DWD-Stations for soils (pot. and actual evaporation, soil moisture, soil temperature, max. depth of frost penetration over…

Soil Atlas and Soil Data

If you are working on European soils, I’m sure you already know the website of the European Union Joint Research Center, the so called ‘European Soil Portal‘. If not, it’s your chance now to get in contact with many different soil data, maps and topics about soils – not only european soils.  Free soil and biodiversity atlas: At the beginning I would like to draw your attention to the great and powerful soil atlas you can download for several regions around the globe for free (PDF format). Follow the links to download the soil atlas (be aware that they contain large…

Using OpenStreetMap on your GARMIN

Since most people working with digital-data they are always interested in obtaining their own data using a Global Positioning System (GPS). Therefore I’ll give a short introduction for all of you, using a GARMIN device and like to have a free background map on the screens. There’ll be also the possibility to make routings to certain addresses or Points of Interest. Although the OpenStreetMap Wiki gives some explanations and tipps on bringing OSM to your device, there are some easier ways to do so. But first we have to clarify the question if your device can handle with OpenStreetMap-data: The following devices…