Questions tagged [land-surface-temperature]
The land-surface-temperature tag has no usage guidance.
54
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Unable to map land surface temperature in QGIS from downloaded tiff
I am trying to download a land surface temperature raster layer from USGS Earth Explorer. I have chosen the following data to map for the Berkeley, CA. From Earth Explorer, from Landsat 4-9 C2 U.S. ...
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36
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Calculating LST from Landsat 8 in Google Earth Engine display a blank image
Why is it that when the following GEE code is used to calculate the lst of landsat8, the data statistics are correct, between 29°C and 55°C, but the output image is blank and the file is only 14.9MB? ...
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155
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Calculating LST from Landsat 5 in Google Earth Engine
I'm trying to write a code for Land Surface Temperature (LST) from Landsat 5 images in Google Earth Engine. I'm using the code of this question as a guide and I succeeded but I'm not sure to be right ...
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Water vapor using Landsat-8
I want to compute Land Surface Temperature using Landsat-8 images, and to do so I have to calculate the water vapor first, I found out that a lot of people use the MSWCVR method which I don't quite ...
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Landsat 5 geometry rectangle with coordinates in GEE result does not show correct AOI
I am using this code to display LST https://code.earthengine.google.com/?accept_repo=users/sofiaermida/landsat_smw_lst.
I use the coordinates as the AOI -80.74, -5.08, -80.51, -5.26 but the result ...
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104
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LST from Lansat 5 in GEE using Code from Ermida et al
I am working with the code at the following link from Ermida et al. in Google Earth Engine https://code.earthengine.google.com/?accept_repo=users/sofiaermida/landsat_smw_lst
I would like to work with ...
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62
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Calculating temperature from multi-spectral map in QGIS
I have a map showing heat islands in a large city in the form of a multispectral (RGB) raster. I'd like to obtain the temperature or at least a temperature scale (the ultimate idea is to be able to ...
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130
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Land Surface Temperature in GEE: Creating a Time Series Chart
I have this code below for creating a LST for my region. Then, I created a chart with mean values. But Chart is not showing the values in correct range. Values range is in between 2500 to 4500.
Code ...
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LST significance testing
I'm new in mapping and coding in Google Earth Engine, can you significant test two LST maps(in TIFF format) in Google Earth Engine using Mann-Kendall? I tried to do it and I encountered many errors, ...
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282
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Convert Sentinel-3 LST data in NetCDF format to GeoTIFF format with coordinates using R
I have Sentinel-3 SLSTR LST data stored in different NetCDF files. I know how to extract the Land Surface Temperature, LST, from the Sentinal-3 through the SNAP, but, I would like to use R to work ...
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Image.constant: Parameter 'value' is required
I am trying to calculate LST, for the time series, but it showing this error, "Image.constant: Parameter 'value' is required." My code link https://code.earthengine.google.com/...
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48
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Calculating LST and NDVI in Single Graph for comparison
I am trying to calculate the LST and NDVI mean values in a Single graph for comparison but somehow my code is giving an error:
Error in map(ID=1_0):
Image. select: Pattern 'NDVI' did not match any ...
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60
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How to extract LST from different points with its coordinates in google earth engine
I am trying to get from different points the LST values. The code works, however, I am not able to identify from which point it is extracting the values. I am trying to get the header of each point ...
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298
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Illogical Land Surface Temperature value from Landsat 8 Level 2 Collection 2 Tier 1
We have been working on a research about urban heat using Land Surface Temperature (LST) in Google Earth Engine. We analyzed the LST pattern in 2021 by using Landsat 8 Level 2 Collection 2 Tier 1. ...
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49
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Radiative Transfer Equation in Earth Engine for LST from Landsat 8
I'm using the following code in earth engine to calculate LST from Landsat image. I want to use Radiative Transfer Equation to use in this, but I know how to code that in GEE. Please Help!
var col = ...
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130
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Incorrect LST values for MODIS and Landsat in GEE
I am trying to plot a linear regression model using MODIS LST values and compare it with a Landsat 7 LST time series. However, I am not getting the correct values in the plot; the range of values ...
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MODIS LST time series for daily average
I am trying to compute and plot the linear regression model for MODIS terra LST values. I have successfully plotted the "LST_Day_1km" band by using the following code:
var terraD = ee....
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47
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How to fill gap in GEE (JavaScript)
I am trying to creat LST maps for given dates. But the images have gap (stripes) for months Jan to Apr in 2011 and 2016. The following is the link of my code in GEE (JavaScript):
https://code....
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80
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LST has a nonsense high temperature value in GEE
I am trying to calculate LST using Google Earth Engine, here's my code:
//image
var hasil = ee.ImageCollection('LANDSAT/LC08/C02/T1_L2')
.filterBounds(roi)
.filterDate('2020-01-01','2020-12-31')
....
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172
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LST calculation from Landsat 8 and 7 shows really different output
I am trying to calculate LST for my region using ArcMap 10.5, but it shows different output and resolution. The first image is Landsat 7 (2012) and the second one is Landsat 8 (2022).
So, logically ...
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73
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GEE, scatter plot between two raster with different numbers of pixels [closed]
Im trying to figure out how to exclude pixels from one raster so it has the same amount of pixels from the other one. I need to make a scatter plot between the two. I've tried pairing the two bands ...
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Why there is Line Error in LST Image in GEE
I am working with LST (Land Surface Temperature) in GEE using Landsat 8, but the result after exporting and downloading the map shows some line errors on it. I do not understand the problem because ...
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Raster calculations with iteration
I have two sets of raster images, how can I do some raster calculations with iteration?
For example, I got TERAA and AQUA land surface temperature(MOD11A1/MYD11A1) images on the same date, and there ...
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171
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How to get Landsat 7 Land Surface Temperature
I am working on Landsat 7 Level 2, Collection 2, Tier 1 images through the Google Earth Engine to calculate the land surface temperature in NYC. Can I use the values of band 6 as land surface ...
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948
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Calculating LST from Landsat 8 in Google Earth Engine not showing correct values?
I'm trying to write a code for Land Surface Temperature (LST) from Landsat 8 images in the google earth engine. I have successfully calculated the following steps, NDVI, fractional vegetation (fv), ...
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Estimate population of Nabweru subcounty using composite image of night time light from VIIRS ,NDVI and LST using Google earth engine
am currently doing a research project due for presentation and its effectiveness in estimating population using nighttime satellite imagery. a case study is Nabweru sub-county KLA uganda. I was to use ...
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Landsat 8 Collection 2 Surface Temperature QA data exhibits strange clustering
I'm working with both Collection 1 and 2 data to explore Surface Temperature.
Collection 2 data has a new product that enumerates the uncertainty in calculated surface temperature.
The data seems ...
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Reprojecting MODIS LST TIFF file
I am completely new to programming. I extracted the sublayer I needed from a MODIS LST data hdf file using ArcGIS and exported it to tiff file. I read that MODIS data is unprojected, so I followed ...
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Google Earth Engine - problem using math functions
I am using Landsat 8 C2L2 images, and I would like to multiply Band 10 with 0.00341802 and then add 149.0 in order to get land surface temperature in Kelvin (this is explained by the second image from ...
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Calibration uncertainty associated with Band 11 of Landsat 8
I read from USGS: "Landsat 8 (L8) Data Users Handbook" the following.
It was from 2019 and I couldn't find any newer version of the Handbook. Thats means, Band 11 is still not a good ...
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Different MIN values from same year's yearly mean composites: one composite from all images and another from monthly composites
I am comparing (maximum & minimum values) yearly composites (both day & night) of Terra MODIS Daily LST 1 km. I calculated using same images but different approaches - just to see if they have ...
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442
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Landsat8 collection 2 level 2 band ST_B10 - correction
I am working on deriving Land Surface Temperature from Landsat8 collection 2 level 2 band ST_B10. Do I still need to correct for NDVI or is the temperatures accurate once the following corrections are ...
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Why this LST code for Landsat 7 is not working?
I am trying to calculate LST from landsat 7, Band ST_B6, using the following code
https://code.earthengine.google.com/8e6c7e6060b8e658c9985d4f4f05f30f
imagen.multiply is not a function;is not a ...
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Calculate yearly change of LST data from MODIS in QGIS
I have monthly raster scenes (June) from MODIS for the period 2000-2020. So for each year one scene.
Now I need to determine the yearly change in temperature for the month of June per pixel in degrees ...
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858
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Google Earth Engine extracting and exporting Modis MOD11A1 data - Observation Time
I extracted daytime and nighttime land surface temperatures (LST) of my 13 points from the Modis MOD11A1 dataset using Google Earth Engine (GGE). For this task I modified the following code:
var ...
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Why my LST code for L5 given high temperaure result?
I am using landsat 5 for LST analysis. My major focus is water temperature. I am using the following code:
https://code.earthengine.google.com/3dfd6eb7af4e01cc9c8cf438dd6f80fd
// This example ...
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Looping through multiple folders to calculate mean(s) of multiple rasters using cell statistcs ArcPy
I am a novice in Python programing.
I have multiple MODIS rasters in different folders for which I want to calculate the mean of corresponding rasters in each folder. I have tried the following code:
...
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648
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Land Surface Temperature in GEE: ,Creating a Chart with correct values
I have this code below for creating an LST for my region. Then, I create a chart with the mean values. But code gives the LST values in the chart in negative from the range -250 to -293. Now I do not ...
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666
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Error calculating LST in QGIS
I was using QGIS to calculate the LST of a city from Landsat 7 and 8 datasets. I was following online formulas to do the computation but I kept getting weird results (i.e. -17~62°C or 44~71°C; which ...
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Can I obtain LST time series from Landsat 7 dataset for 2019-21?
I used the below code I got from a similar question for obtaining the time series of LST using Landsat 7 dataset. I am getting error as:
Image (Error) reduce.median: Error in map(ID=...
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How can I group Land Cover Classification into urban vs rural areas and summarize Land Surface Temperature for each class in python? [closed]
I have NLCD land cover classifications from an .img file as follow:
I would like to somehow reclassify these into Urban or Rural by taking all developed as urban and the rest, minus water as rural.
...
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812
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How to transform Kelvin to Celsius in GEE
I'm struggling to transform Kelvin to Celsius in Google Earth Engine. I'm working with ERA5 2 meter air monthly average and the output of the code below is in Kelvin.
How can I transform it into ...
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367
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Interpolate temperature values (with associated lat and lon values) at different depth intervals using Krig function in the 'fields' R package
I have temperature data points in different depth intervals with associated lat long values across the study area. I want to make a raster and then interpolate between cells of the raster where there ...
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849
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Land Surface Temperature in GEE: Creating a Chart
I have this code below for creating a LST for my region.
Now I want to create a chart with the median instead of the mean values. But I do not know how and where in the code.
Besides, I would like to ...
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365
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Getting Max, Mean and Min Temperatures of several sites ERA5
I've been trying to export daily MAX, MIN and MEAN Temp for a specific region, but something seems to be wrong, because I can't get any value.
var dataset = ee.ImageCollection('ECMWF/ERA5/DAILY')
...
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4k
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Land surface temperature in Google Earth Engine
I want to create the LST in GEE for my region. I'd like to analyse differences. I found this code below, but the processed image is just one color. I'm not sure if it's right or if I have to change ...
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579
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Exporting Image Collection - Landsat-8 Surface Temperature (Google Earth Engine)
I've been trying to export the quarterly mean surface temperature derived from Landsat-8. I stumbled upon the batch module of fitoprincipe's. However instead of exporting a single image for each ...
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167
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Error generating chart: No features contain non-null values of "system:time_start". Landsat 8 Surface Temperature Time-Series Chart (Earth Engine)
I want to create an average surface temperature time series chart (+ per year).
However I am encountering this error Error generating chart: No features contain non-null values of "system:...
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1k
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Calculating LST from Landsat 8 image collection in Google Earth Engine?
I wrote a code for Land Surface Temperature (LST) from Landsat 8 image collection in the google earth engine. I have calculated the following steps, NDVI, fractional vegetation (fv), emissivity (EM), ...
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1
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287
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LST time series chart shows up as a line
Here is the code I am using to create a time series chart representing the LST over a three month period in 2018. However, the mean LST in the chart appears as a straight line representing one ...
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