October 5, 2022
by chris
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In addition to the recent autumn colors images here two views of the polar region autumn and spring on the northern and southern hemisphere. The first shows the Ellsworth Mountains with a low sun position just after the end of … Continue reading
September 21, 2022
by chris
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According to plans announced some time ago the USGS is going to stop recording images with Landsat 7 at the end of September, ending routine operation of the satellite after more than 20 years. Like EO-1 where i discussed this … Continue reading
March 25, 2022
by chris
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I am happy to announce my newest satellite image product – The Comprehensive Optical Mosaic of the Antarctic (COMA). The COMA is the result of an evolution of the satellite image mosaic production techniques i have been improving for over … Continue reading
December 14, 2021
by chris
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The Antarctic satellite image observation season has already started a few months ago meanwhile. Here are – somewhat late – two impressions from the beginning of the 2021/2022 Antarctic season. The first is a rare sunrise glimpse of the McMurdo … Continue reading
September 27, 2021
by chris
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Today Landsat 9 was launched. As i mentioned before i typically do not discuss Earth observation satellite launches here because the more interesting and practically meaningful date is when the data starts becoming available. But i make an exception for … Continue reading
March 22, 2021
by chris
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I am a bit late this year but i wanted to continue with my tradition to publish a yearly analysis of the recordings of the two currently operating high resolution open data producing earth observation satellites recording in images in … Continue reading
June 10, 2020
by chris
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When i announced the Green Marble mosaic version 2 mosaic recently i mentioned that the land coloring is based on MODIS data while the water color is created from Sentinel-3 data. There are multiple reasons for this choice of data … Continue reading
May 18, 2020
by chris
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Yesterday 40 years ago in 1980 was the date of the first major volcanic eruption that was recorded by earth observation satellites. There is also imagery of the eruption itself but the more interesting images are those recorded before and … Continue reading
January 8, 2020
by chris
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Like last year i want to here provide a look at the image acquisition numbers and spatial distribution of recordings of the two main optical higher resolution satellite systems producing open data these days: Landsat and Sentinel-2. Here is the … Continue reading
August 2, 2019
by chris
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Some time ago i introduced a new technique for producing accurate color mosaics from Landsat and Sentinel-2 data using pixel statistics methods. Here now some larger area 3d views of Europe produced using this imagery allowing for a more accurate … Continue reading