Leaderboard

Collecting high resolution spatial data for use in biological research used to require the purchase and use of a dedicated GPS receiver. However, almost all modern smart phones contain GPS receivers, and by downloading and installing a suitable app, you can turn your smart phone into a fully functioning GPS receiver. This video shows you how to download, install and set up one such app, GPS Essentials, on an Android smart phone. While this is the GPS app that we, at GIS In Ecology, currently recommend, many other similar apps are available, but all will need to be set up in a similar manner. Subsequent videos in this series willl show you how to record spatial information using this app, and also how to ensure that your smart phone is set to collect high-resolution spatial data. This video is presented by Dr Colin D. MacLeod, author of ‘GIS For Biologists: A Practical Introduction For Undergraduates’, and is brought to you by GIS In Ecology (www.GISinEcology.com), the world leader in providing GIS training for biologists by biologists. https://www.youtube.com/watch?v=p0X_Fnd9DlY tested in my phone

The exact moment the Landsat 8 satellite is passing above Bangkok you can find it in the metadata file of the Landsat image. If it passes in the morning, then maybe you should find another satellite platform that might fly closer to the afternoon period, like ASTER or MODIS to estimate the Land Surface Temperature (LST). You should also have meteorological data from a meteorological station. Remember that thermal satellite images estimate the LST (the Surface Urban Heat Island - SUHI), not the air temperature ( classic Urban Heat Island - air temperature). So, there are 2 distinctions between SUHI and UHI.