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5

I've downloaded these granules and notice the same shift. It appears to be geographic processing error on ESA's behalf. I've never encountered a shift like this before. The image metadata is the same for both, which means some error occurred before the Level 1-C product. (the 100*100Km granules have already been processed, for more information look here) I ...


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the anomaly has been identified and is currently under investigation. It is not systematic as far as we know. Please report this kind of anomaly to the Copernicus help desk. Thanks S├ębatien CLERC S2 Mission Performance Center


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As PolyGeo mentioned in his comment, your question is too broad. There are plenty of satellite images with high spatial resolution including QuickBird, Ikonos, WorldView-1 and WorldView-2 (spatial resolution of 0.46 m), and you can check sample image of WorldView-2, WorldView-3 now provide data at 0.31 m resolution. Answering this question will not be easy, ...


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Layer stacking is a process for combining multiple images into a single image. In order to do that the images should have the same extent (number of rows and number of columns), which means you will need to resample other bands which have different spatial resolution to the target resolution. In other words, all images/bands should have same spatial ...


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You can download Sentinel 2 Imagery by going to the Sentinel Data Access Portal and selecting the Sentinel Data Hub Once you have arrived here select Scientific Hub In the top right hand corner select Sign Up (Enter all your info and verify the email they send you) Login to your new account. Begin your search by using the search bar and type in ...


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@Mr. Che and @Aaron have given great answers regarding two different things to do, but i would like to point out that there is actually a quick and easy way to use the landsat data without dealing with implementing the fmask algorithm or doing the atmospheric correction yourself: by using the surface reflectance data processed based on Landsat data. They are ...


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Can you tell me what module are you using ? You should be able to do that. You need to use the "Edit ENVI Header" and then open the Edit Attributes. When you are there scroll down to "Data Ignore Value" and set to Zero.


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McNemar's test is a test for paired proportions, I do not see how it applies to a multi-class confusion matrix. Commonly, it is applied to validate logistic models. You cannot hope to aggregate the entire confusion matrix into an 2x2 contingency matrix and expect a valid hypothesis test. I suppose that you could iterate through classes, deriving an ...


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There is actually no need to develop a cloud mask from scratch (unless you feel the absolute need of doing so). If you download the Landsat 8 surface reflectance data, there would be a quality file associated with it, which contains several cloud-related bands. If you are not happy with them, you can modify them based on your needs. It would be a much better ...


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Yes, there are Tasseled Cap Coefficients for the RapidEye sensors available: Brightness, Greenness and Yellowness. Yellowness - instead of the commonly derived Wetness (e.g. Landsat) - was derived because the RapidEye sensors do not have SWIR bands (SWIR bands respond to moisture variation, e.g. in soil/vegetation). Yellowness instead shows the variation of ...


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Just adding one more option, AWS hosts Landsat scenes on S3 https://aws.amazon.com/public-data-sets/landsat/ To do land cover classification, you could also consider using Sentinel 2 data. Sentinel 2A has been launched a few months ago, its 10m resolution with 13 spectral bands. The Copernicus program grants full open access to the sentinel data: ...



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