A larger version of a portion of the Sentinel-2 image can be seen on the left. ... “The Arctic represents the emergence of a new geopolitical arena. Scientists using data from the Copernicus Sentinel-5P satellite have noticed a strong reduction of ozone concentrations over the Arctic. Quantifying Sentinel-3 data in the Arctic The JRC recently participated in a measurement campaign to assess satellite ocean colour products in the Arctic.Satellite technologies are an invaluable tool for detecting changes at the global scale through long-term and comprehensive observations. A larger version of a portion of the Sentinel-2 image can be seen on the left. Sentinel-1 is the first of the Copernicus Programme satellite constellation conducted by the European Space Agency. The revisit time of this constellation is now every five days, so daily repetition in the High Arctic is possible. Copernicus Sentinel-1 provides the high resolution, which is needed to meet the demands of arctic marine users, but presents ambiguities between open water in windy weather conditions and homogeneous ice surfaces. Description. Satellites provide the majority of information about the development of ice conditions in the Arctic. March 30, 2017 January 1, 2020. How Climate Change Will Be the Biggest Geopolitical Crisis of the Century. This mission is composed of a constellation of two satellites, Sentinel-1A and Sentinel-1B, which share the same orbital plane.They carry a C-band synthetic-aperture radar instrument which provides a collection of data in all-weather, day or night. How Climate Change Will Be the Biggest Geopolitical Crisis of the Century. The Copernicus Sentinel-1 mission takes us over the Lena River Delta, the largest delta in the Arctic. The wing span of O. alpina is about forty millimetres. Oeneis alpina, the sentinel Arctic or Eskimo Arctic, is a species of butterfly in the subfamily Satyrinae.It occurs in Siberia and the northern parts of North America. The Sentinel-3 image at the top of the blog shows an area of northern Siberia with the large plume of smoke rising from it. Nick Ottens is the founder and editor of the Atlantic Sentinel. The Sentinel-3 image at the top of the blog shows an area of northern Siberia with the large plume of smoke rising from it. Sentinel-1 is a two satellite constellation with the prime objectives of Land and Ocean monitoring.The goal of the mission is to provide C-Band SAR data continuity following the retirement of ERS-2 and the end of the Envisat mission.. To accomplish this the satellites carry a C-SAR sensor, which offers medium and high resolution imaging in all weather conditiions. Multispectral remote sensing may be a powerful tool for areal retrieval of biogeophysical parameters in the Arctic sea ice. Just below the left of centre is a small square showing a Sentinel-2 image of a specific area. The wings are orangish-brown, with the base two thirds a much darker shade. It occurs in Siberia and the northern parts of North America. At nearly 4500 km long, the Lena River is one of the longest rivers in the world. Oeneis alpina, the sentinel Arctic or Eskimo Arctic, is a species of butterfly in the subfamily Satyrinae.