Questions tagged [landsat-8]
Use this tag when asking question related to the 8th satellite in the Landsat program.
457 questions
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No data in collection LANDSAT/LC08/C01/T1_SR for 2022 [closed]
LANDSAT/LC08/C01/T1_SR data for year 2022 is not available. what is reason and when it can be available in Google Earth Engine?
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Different NDVI values with and without scale/offset
Bellow there are 2 different NDVI values, before and after applying scale/offset on bands 4 and 5.
Which is correct, the one with scale/offset being applied or the other?
I used a Landsat 8 L2SP image,...
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Should we only use the valid range that Landsat gives inside their guides?
Page 12 from this guide https://www.usgs.gov/media/files/landsat-8-9-collection-2-level-2-science-product-guide has the following row. It says that Band 10, can be multiplied by 0.00341802, and then ...
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Remove pixels from one raster to another
In the following images, the first one has only 2 classes of pixels. I would like to remove Image's 1, class 1 (white pixels) completely from Image 2. As a result, Image 2 will have null values in the ...
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Valid range of Landsat L2SP
I am using ArcGIS Pro. The given band 4 of a Landsat 8 L2SP product has a range of 75-62460, but in table 6-1 the valid range is 7273-43636. What is this range and also, should I exclude values for my ...
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"Exported bands must have compatible data types; found inconsistent types: UInt16 and Int16." how to solve?
I am new to GEE and processing satellite imagery. I am trying to download Landsat 8 Raw Imagery with the max. cloud coverage.
I get the following error when running the task:
Error: Exported bands ...
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Get rid of those masked tiles to continue with data processing
I have masked tiles in my Landsat images for my area of interest, so I merged a sentinel 2 image to fill the gaps. However, after merging and continuing with the classification, those tiles are still ...
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Landsat-QA-ArcGIS-Toolbox Problem
I am using the following toolbox to remove some anomalous pixels from my image (Landsat 8 C2L2). This tool doesn't work on ArcGIS Pro but it works on ArcMap 10.3 instead. The problem is that, when I ...
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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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Converting Landsat 8 RGB bands to 8-bit colors
I generated composite images of Landsat 8 SR images using this Google Earth Engine collection, and for a machine learning project now I need to transform the RGB bands of these images to 8-bit colors.
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What is the ground surface reflectance of Landsat8 Level2 data?
I would like to know the definition of Level2 ground surface reflectance.
For example, up to how many kilometers above the ground is it defined as surface reflectance?
It is possible that I am ...
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Calculate and plot time series of tasseled cap from Landsat8 in GEE
My goal is to calculate TC for every image in the image collection and add it as another band to those images. (especially TCW and TCG). Then I would like to plot a scatter chart of the average TCW/...
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Landsat 8 - Collection 1 BQA vs Collection 2 QA_PIXEL
I am working on updating a Python program for atmospherically correcting Level 1 Landsat 8 data from Collection 1 to Collection 2, as Collection 1 data is discontinued and will no longer be available ...
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Image exported from GEE is pixelated when open in ArcMap
I am in my final step of exporting filtered images from Google Earth Engine.
Exporting params like so // batch.Download.ImageCollection.toDrive(roilist_0_g_2016_2020_col, 'Landsat07', {scale: 30});
...
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geetools:batch not working in 2022 Google Earth Engine (GEE) (solved)
I am pretty new to GEE, but somehow find my way to get an imagecollection that I want to export. Then I find geetools:batch with this answer Link.
Objective and Problem: what I want to do is to ...
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How to remove duplicate Images from a Landsat8 Image Collection
I am very new to Google Earth Engine and coding.
My goal is to run statistical analysis on a study & control area looking at Vegetation productivity loss across a time period.
I downloaded the ee....
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Export median yearly Landsat 8 bands and indices to Google Drive using Google Earth Engine
I am trying to export yearly median Landsat 8 bands and indices to Google Drive. I can do that for monthly images but I'd like to do that for yearly images. In the example below, I downloaded monthly ...
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Weird artifact on Landsat 8 image downloaded from Google Earth Engine
I am trying to download images from google earth engine for the Netherlands from 2013 through 2021. For the years 2013, 2017, and 2019, the images I'm getting have a weird white artifact on them, as ...
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LANDSAT 7 Surface Reflectance Missing Data For Large Swaths of Area
I am attempting to calculate the Green Chlorophyll Index across districts in Mali during the growing season(5/1-10/1) for the years2010 to 2019. I use Landsat 8 Surface Reflectance data for 2013-2019(...
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Creating calculated raster causes projection problems
I am using two GeoTIFFs to calculate NDVI.
Relating to bands 5 and 4 of Landsat 8, and using the raster calculator in QGIS, I import the TIFFs and use the formula (B5-B4)/(B5+B4).
The projection for ...
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Landsat collections
What's the difference between Landsat 8 collection 1 and 2,and what's the difference between level 1 and level 2 in each collection? I'm a little bit confused and I don't know which one I should use.
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How to blur Landsat 8 image using a gaussian smooth filter with specified sigma value before downloading using Google Earth Engine?
I would like to add gaussian blur with sigma = 'some value' to Landsat 8 images before I download them using Google Earth Engine (GEE). So far I managed to simple download the images without adding ...
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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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Earth Engine: Landsat 8 QA_PIXEL issues with cloud, shadow, and land masking
Using the QA_PIXEL band in Landsat 8 to mask out clouds, cloud shadow, and land often masks out large areas of water. The QA_PIXEL band identifies these water areas as land and cloud shadow, when this ...
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482
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Landsat 8 Collection 2 cloud-free mosaics in Earth Engine
I am trying to get cloud-free mosaics from 6-months periods of Landsat 8 Collection 2 Surface Reflectance.
So far I've used geetools. My code consists of multiple modules so I can't paste it all here, ...
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333
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ArcGIS is not showing all the colors of TIFF image exported from Google Earth Engine
I am doing supervised classification in Google Earth Engine then export the output in .tiff format image.
For prediction works, I need to import those .tif images in the ArcGIS. But ArcGIS / ArcMap is ...
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Land cover classification using Google Earth Engine, and involving SAVI and EVI indices
I'm trying to do a land cover classification using Landsat-8 OLI/TIRS. However, I want to involve indexes (SAVI, and EVI) in this classification process. I don't know how to solve this problem. Is ...
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Extraction of NDVI values against each GPS coordinates of Landsat 8 images
My goal is to calculate the NDVI value of each image from 2017 to 2022 but output values show the same value for each image.
Can you look at the code?
var Date_Start = ee.Date('2017-01-01');
var ...
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Combining Band Data
I recently downloaded Landsat 8 and 5 imagery from Earth Explorer, but my problem is that all of my data bands are separate and not composite. Does anyone have any advice for getting them to combine ...
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Apply linear stretch to Landsat 8 images in the tmap R package
I have a Landsat 8 dataset downloaded from the USGS. I import into R using the following code:
B1 <- raster("LC08_L2SP_166072_20210819_20210827_02_T1_SR_B1.TIF")
B2 <- raster("...
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Filter out daytime image of LANDSAT 8 using Google Earth Engine
I saw an answer here saying that we should sort by 'system:time_start' but shouldn't that refer to the date (like 2015-05-01) instead of hour of the day? I also tried something like ee.Filter....
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Download Landsat imagery from Earth Explorer using Python and metadata
Using metadata (.csv) from Earth Explorer, how can I download it's Landsat imagery. There are a number of options available that use Python, but I am wanting to download using the metadata. I think I ...
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Negative band values for LANDSAT/LC08/C02/T1_L2 after applying scale factors
After applying scale factors to images in the LANDSAT/LC08/C02/T1_L2 collection, as prescribed in the EE data-set catalog, I expected the SR_B. bands to have values between 0 and 1. However, some ...
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Getting 404 response while fetching Landsat-8 data from AWS S3
I am trying to fetch Landsat-8 satellite data from AWS S3 and for getting details, I am using gdalinfo command:
gdalinfo /vsicurl/https://s3-us-west-2.amazonaws.com/landsat-pds/c1/L8/144/048/...
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Why is my image not showing and in my metadata it says that my band is 0?
I'm working on estimation chlorophyll-a using a Landsat 8 image on Google Earth Engine but my image is not showing, and in my metadata it says that my band is 0. I'm really really confused because I'...
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How to make a cloud-free composite for Landsat 8 Collection 2 surface reflectance in Earth Engine
Suppose I want to create a cloud-free composite of Landsat 8 Collection 2 surface reflectance images for summer 2021 of Washington state, USA. How can I do it?
Here is the code to build the collection ...
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How to Export latitude and longitude of ROI from Google Earth Engine
I want to export the latitude and longitude values as a CSV file from GEE. I tried the below code, but this code gives me round off values of the coordinates
var sentImage = ee.ImageCollection('...
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Calculate EBBI from Landsat 8 in Google Earth Engine
I am trying to calculate EBBI from Landsat 8 in Google Earth Engine (GEE) but I am getting this error: Error: Image.parseExpression: Expression parse error at character 30: '(SWIR - NIR)/ (10 * Image....
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Classify pixels using deep learning is giving wrong result for Landsat-7 data in ArcGIS
I am trying to classify two LULC maps from two data. One is for 2020 (Landsat 8), and another is for 2000 (Landsat 7). The pixel depth is 64-bit and both of the data were downloaded from Google Earth ...
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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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Is it incorrect to calculate NDVI using DN (Digital Numbers) values instead of using the Surface Reflectance values?
I am working with images from landsat8. I need to know If I can calculate correctly NDVI using digital numbers instead Surface Reflectance values or TOA reflectance
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Are Landsat satellites exactly sun-synchronous?
Sun-synchronous satellites are known to pass over any given point of the planet's surface at the same local mean solar time (link-to-wiki). Landsat is one of these sun-synchronous satellites.
I'm ...
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NBR difference in Google Earth Engine
I want to use two NBR images(NBR1 and NBR2) for the differenced Normalized Burn Ratio (dNBR). But I can't identify the error of dNBR output.
Code snippet:
var NBR1 = landsat8_1.expression(
&...
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Landsat 8 Collection 2 anomalies in TIRS1 data (from QA_PIXEL and ST_QA)
I am looking to use Landsat 8 TIRS1 data over a region in the Yukon, Canada and I am getting persistent masked pixels (from the PIXEL_QA or the ST_QA bands) along what appears to be the same Focal ...
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landsat C2L2 random forest classification
I want to apply random forest classification on landsat C2L2 data.
I found code for Landsat Top of Atmosphere (TOA) collection but i think its better to use C2L2 colection (i will be so glad if any ...
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Calculating changes in NDVI in time using Landsat 7 image and Landsat 8 image
I'm trying to understand how much urban vegetation has changed in the past 20 years in my city. The plan is to calculate NDVI for Time1 and NDVI for Time2 and subtract them.
BUT Landsat 7 images, that ...
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Is this the correct way to map system:index to a Collection?
I have the code below to map the system:index (time and date, I think?) to an image collection. The ImageCollection scenes are used to calculate LST in due course, and the system:index value appended ...
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Mapping system:index to ID data then exporting one/two large CSVs
I asked a similar question recently and @Noel Gorelick provided some suggestions of how to proceed.
His advice was to:
Merge your collections (I think I've done this below)
"Export the merged ...
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In Earth Engine, when exporting to drive the raster is shifted
The Problem:
Two identical Landsat scenes were downloaded from two different sources. USGS Earth Explorer and Google Earth Engine. Although both of the scenes are in the exact same coordinate system (...
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Combining CSV files within Earth Engine
I have a script in EE (below) which is mapping a function to calculate Land Surface Temperature in my area of interest across multiple years of Landsat 8 scenes (filtered for clear terrain using the ...
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