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Geographic Information Systems

Questions tagged [time-series]

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Series of data points indexed in time order.

369 questions
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I have successfully plotted my time series of the temperature in Lausanne, but somehow the slope is wrong on the chart, which displayed 1.764E-4. I need to download the CSV file and find out the ...
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I have code in GEE that I am trying to use to create a timeseries chart showing all the unsupervised clusters after calculating the mean KNDVI for each cluster. But I receive an error Dictionary.get: ...
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I am trying to create a timeseries chart in GEE and I keep having an error: Error generating chart: Collection.map: A mapped algorithm must return a Feature or Image What can be the reason for this ...
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I'm trying to get Timesat 3.3 working on Arch Linux. I'm using the pre-compiled Matlab binaries and am getting the below error when launching it:  ~/bin/timesat33/compiled/Linux64 $ ./run_TIMESAT.sh /...
skualos's user avatar
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I have been using "COPERNICUS/S2_HARMONIZED" Sentinel-2 L1C image collection to calculate time-series vegetation indices NDVI, MSR, EVI and SAVI. Should we unscale the reflectance values i.e....
rekha's user avatar
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I'm working with a time-enabled layer in Experience Builder that displays data using the "Counts and Amounts" visualization (proportional symbols/bubbles). My dataset contains data collected ...
Roman Sizo's user avatar
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I generated NDVI from different satellites individually. Is it possible to plot all these NDVI values in a single graph, by satellite type? var roi = ee.FeatureCollection([ ee.Feature(...
clovis cechim's user avatar
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I'm working with Landsat MSS and Landsat TM, ETM, and OLI data to analyze a NDVI 40-year time series within Google Earth Engine platform. Because of missing Landsat MSS TIER 1 data, I have only ...
user241550's user avatar
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I have a code written in R that extracts data from an NC file to compute a time series for a specific location using latitude and longitude. However, the file only outputs three values instead of the ...
Simba's user avatar
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Situation: My colleague and I have made our first script in Google Earth Engine Code Editor that will be published as an Earth Engine App. The script shows 33 basin-polygons that the user can click on,...
hvaras's user avatar
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I am trying to get NDVI from Landsat-8 for a region starting from 2013 uptil Sep 2024 in Google Earth Engine. I am attempting time series and am looking for results for every month for all these years ...
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I need a create an atlas were each polygon have various dates. For exemplo atlas of properties each properties in January, February, March, and April. I know if I copy the same polygon of properties ...
Newton Monteiro's user avatar
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I have a script to create a gif in GEE, but if it's more than about 100 frames, or fewer but I try to increase the resolution, it will not display in the console. And as I understand a gif cannot be ...
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I'm trying to export a time series of EVI data for a large asset containing 40,000 points. I am using the MODIS data. The code that I've written works when I extract data for 5 points, but it's not ...
Lauren's user avatar
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I have a rasterstack, created from an .nc file, named 'dat.stack' > dat.stack class : SpatRaster dimensions : 180, 360, 28896 (nrow, ncol, nlyr) resolution : 1, 1 (x, y) extent : -...
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