Skip to main content

Questions tagged [land-surface-temperature]

Filter by
Sorted by
Tagged with
0 votes
0 answers
15 views

Solving Geometry Error in LST Prediction Using QGIS and MOLUSCE Plugin

I’m currently working on a project to predict Land Surface Temperature (LST) for the year 2033 using QGIS and the MOLUSCE plugin. My dataset includes LST raster layers for 2013 and 2023, along with ...
RAKIBUL ISLAM's user avatar
0 votes
0 answers
14 views

LST calculation on Google Earth Engine (chunk of data is absent on map)

I am using Google Earth Engine to calculate LST using the Landsat 8 data for Durban, KZN in South Africa. However a chunk of the LST data is absent for a portion of my study area . The true image and ...
Karishta Basidawu's user avatar
1 vote
1 answer
74 views

"Latitude Grid Not Spaced Evenly" warning from NCEP-NCAR reanalysis 2m Air Temp raster

I am using air temperature data from the NCEP-NCAR reanalysis along with a country shape file to calculate mean air temperature by country. The NCEP-NCAR project has various air temperature rasters ...
hayfreed's user avatar
  • 123
0 votes
1 answer
29 views

Struggling with Google Earth Engine to download temperature data from ERA5 that corresponds to my reference dataset

This is what my reference dataset looks like, I want to get monthly min, max and mean temperatures for each of the site-years. I split each site year into 12 months but I don't know if that is ...
Tatiana's user avatar
0 votes
1 answer
23 views

LST in GEE: Error generating chart: No features contain non-null values of "system:time_start"

The error: Error generating chart: No features contain non-null values of "system:time_start" appears when I try to generate the LST graph in GEE for the selected period. I tried to return ...
Kauan Kubaski's user avatar
0 votes
0 answers
14 views

How to obtain Thermal index (TI) from landsat 8 or 9 images and then overlay them over shadow Index (SI) to obtain advanced shadow index?

I was trying to figure out the forest canopy density of a region through the methodology which I have found in certain papers such as "INVESTIGATION OF FOREST CANOPY DENSITY CHANGES IN HYRCANIAN ...
Vivek Krishna's user avatar
-1 votes
1 answer
24 views

Error generating chart: Image.parseExpression: Expression contains undeclared variables: [max] for vci, and tci [closed]

I have a problem creating the chart and there is error message expression undeclared variables var geometry = /* color: #d63000 */ /* displayProperties: [ { "type": &...
iqbalhabibie habibie's user avatar
0 votes
0 answers
25 views

I am calculating LST for Mumbai

I am calculating LST for Mumbai and I found that only Airport and Slum, Barrel land is having high LST than any other region. I need to analyze it more if its just showing all area cooler in city like ...
kalpanapardeshi's user avatar
0 votes
0 answers
29 views

Smoothed landsat LST time series with lineair regression function

I am trying to get a smoothed result in GEE from my LST time series but I get an error that the memory limit is exceeded. How can I make my model more effective? This is my code: var LLST = require('...
Eppez's user avatar
  • 1
1 vote
0 answers
43 views

Is there a publicly available higher resolution equivalent to Landsat 8/9 TIRS?

I have a strong feeling the answer to this question is no. That said, I'd love to be wrong. I'm looking to estimate land surface temperature at a higher resolution than the 100m bands (10 and 11) on ...
msmith81886's user avatar
0 votes
0 answers
26 views

Using same spatial resolution for NDVI and LST data in machine learning model

I am currently developing a drought forecasting machine learning model and this is my first time handling satellite data. Two of my data sources are the MOD13A1 dataset from Google Earth Engine for ...
Shrey Desai's user avatar
0 votes
0 answers
135 views

GEE - extract temperature data for a large dataset of GPS locations

I'm trying to extract mean temperature data for specific GPS locations across a large latitudinal/longitudinal range). I am using Google Earth Engine (new at this). To get to the code I'm showing ...
mto23's user avatar
  • 665
0 votes
0 answers
53 views

What do the values mean in surface reflectance/surface temperature bands Landsat 8/9 OLI/TIRS C2 Level 2?

I am trying to make a heat risk index using Landsat8 but I am having a bit of trouble with understanding the basics or operating remotely sensed imagery. I downloaded the band 10 of Landsat 8 because ...
noobshacks76's user avatar
0 votes
1 answer
157 views

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. ...
LostinSpatialAnalysis's user avatar
0 votes
1 answer
173 views

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? ...
Thomas Taylor's user avatar
0 votes
0 answers
531 views

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 ...
user222721's user avatar
0 votes
0 answers
35 views

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 ...
FF123456's user avatar
0 votes
0 answers
65 views

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 ...
PeruMap's user avatar
0 votes
0 answers
256 views

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 ...
PeruMap's user avatar
0 votes
0 answers
107 views

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 ...
SimGeographer's user avatar
0 votes
1 answer
460 views

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 ...
ammaciel's user avatar
0 votes
1 answer
164 views

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/...
Muhammad Waqas's user avatar
-1 votes
1 answer
62 views

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 ...
Muhammad Waqas's user avatar
-2 votes
1 answer
91 views

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 ...
JHONNY_2178's user avatar
0 votes
1 answer
664 views

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. ...
Bagas's user avatar
  • 1
1 vote
0 answers
161 views

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 ...
Ali Turab Hani's user avatar
0 votes
1 answer
459 views

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....
Ali Turab Hani's user avatar
1 vote
0 answers
255 views

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 ...
Zon Zahidan's user avatar
0 votes
1 answer
133 views

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 ...
yasmin.gelli's user avatar
1 vote
0 answers
70 views

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 ...
Ruru's user avatar
  • 11
0 votes
1 answer
24 views

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 ...
Ooops's user avatar
  • 19
0 votes
1 answer
380 views

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 ...
HishaMan's user avatar
0 votes
1 answer
2k views

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), ...
Muhammad Waqas's user avatar
0 votes
0 answers
26 views

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 ...
Joe Walubi's user avatar
0 votes
1 answer
67 views

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 ...
strangecharm's user avatar
0 votes
1 answer
150 views

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 ...
SVpk's user avatar
  • 1
0 votes
1 answer
57 views

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 ...
Chris's user avatar
  • 123
0 votes
1 answer
81 views

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 ...
Salit's user avatar
  • 170
2 votes
1 answer
854 views

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 ...
MESUIN's user avatar
  • 21
1 vote
1 answer
420 views

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 ...
jhunu's user avatar
  • 11
0 votes
1 answer
97 views

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 ...
trytolearn's user avatar
0 votes
1 answer
1k views

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 ...
Ayda Aktas's user avatar
1 vote
2 answers
595 views

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 ...
jhunu's user avatar
  • 11
2 votes
1 answer
100 views

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: ...
Justice Osei-Akoto's user avatar
1 vote
1 answer
931 views

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 ...
Muhammad Waqas's user avatar
1 vote
1 answer
1k views

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 ...
Phoebe Ho's user avatar
0 votes
1 answer
132 views

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=...
Aiswarya's user avatar
1 vote
0 answers
143 views

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. ...
codee's user avatar
  • 11
0 votes
1 answer
1k views

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 ...
Isaac_vasconcelos's user avatar
0 votes
1 answer
476 views

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 ...
Leandri de Kock's user avatar