Landsat could refer to the Landsat program, a remote sensing program managed by USGS and NASA. It could also mean the satellite imagery data from this program.
Questions tagged [landsat]
109 questions
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Filter Landsat 7 SLC-off scenes when running cubo.create
How to remove the Landsat 7 SLC-off scenes when running cubo.create (https://cubo.readthedocs.io/en/latest/index.html) ?
Here is my original code:
import cubo
da = cubo.create(
lat=3.183376976287226,
lon=31.25171910907124,
…
bchate
- 145
- 9
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Using pansharpening in Gee python API to calculate NDWI in better resolution
I am new to Gee and python as well and am facing a problem in Gee python API in Colab. I want to pansharpen a Landsat 8 mage to generate an image with better spatial resolution. Afterwards I want to use the sharpened image to calculate a NDWI image…
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Can't find and print the average NDVI value using Landsat 9 within a clipped area
var dataset = ee.ImageCollection('LANDSAT/LC09/C02/T1_L2')
.filterDate('202-01-01', '2023-01-03')
.filterBounds(geometry);
var image = dataset.median()
.clip(geometry);
var NIR = image.select('SR_B5').multiply(0.0000275).add(-0.2);
var…
0
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0 answers
Illogical Land Surface Temperature value from Landsat 8 Level 2 Collection 2 Tier 1
We have been working on 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. However, after finding out the results it startled us…
Hernand B.K.
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- 1
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Remove Outliers for NDVI in Google Earth Engine
I have the attached script in which I have calulated NDVI and NDMI yearly using Landsat8 for my ROI. But even after I masked out cloud pixels I still get outliers of NDVI and NDMI as NDVI and NDMI should stay conisistant in this region? Is there a…
Selena Chavez
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Cloud masking and SLC error correction using GEE
I have downloaded a few images from USGS earth explorer. I can see cloud cover, cloud shadow and SLC errors in those images. I have uploaded raster images as an asset (Tiff format) into Google Earth Engine (GEE).
How to perform cloud masking and SLC…
sowjanya
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To extract the pixel values using point shapefile as feature Collection of time series data (landsat 8) and export it in csv, in python using geemap()
Error occured: "The image must be an instance of ee.Image.", for the following code.
import os
import ee
import geemap
ee.Initialize()
Map = geemap.Map()
Map
india = ee.FeatureCollection("users/GEE_work/INDIA_WITH_KASHMIR")
collection =…
Moumita Marandi
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- 1
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Error "not recognized as a supported file format" or getting NaN values when reading Landsat level 1 data from STAC with stackstac
When trying to get Landsat 8 Level 1 data using python stackstac package, I get, either the error mentioned above for every scene or just NaN values inside the lazy xarray DataArray.
With the stackstac package I connect with a STAC Collection for…
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Single or double band processing in code?
I am using a 'toolbox' on Github to calculate the Land Surface Temperature from Landsat 8 scenes using Google Earth Engine.
One section of this code (below) can use either Band 10, or Bands 10 + 11 to calculate a variable.
The code comments state …
strangecharm
- 186
- 11
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Problem with LST image downlad from Google Earth Engine
I am not able to solve the issue with my code chunk here in Google Earth Engine.
The error I encounter are:
Unknown element type provided: object. Expected: ee.Image, ee.ImageCollection, ee.FeatureCollection, ee.Element or ee.ComputedObject.
LST:…
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0 answers
problems with importing Landsat7 pictures into QGIS via SCP
im using the semi-automatic classification plug-in in QGIS to create a landuse and landcover classification for Guatemala in the year 2000.
Now the problem is, that the searchengine in this plug-in tells me, that there is no data available.
I tried…
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1 answer
Getting error: Error in map(ID=8): Image.select: Pattern 'B5' did not match any bands in Google Earth Engine
Trying to modify a code in Google Earth Engine I found in the internet which I need for performing time series analysis. I need Landsat images from 1984-2022, that’s why I merged two Image Collection (L5 and L8).
But I am getting an error:…
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0 answers
BOA: Layer error: List.get: List is empty (index is 0). when trying to transform landsat 8 composite ToA to BoA in Google Earth Engine
I am trying to compute BoA from a Landsat 8 composite image. However, I am getting the following error:
BOA: Layer error: List.get: List is empty (index is 0). I would appreciate any…
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1 answer
how to handle non-periodic timeseries in bfast (R)
my problem is the following : I have a Landsat NDVI time series that is non-periodic/doesn't have a homogenous frequency. However, the error code I receive is
Error in stl(Yt, "periodic") : series is not periodic or has less than two periods
after…
Tanja
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2 answers
Resample (increase the pixel size) a satellite image using a Gaussian filter in Python
I have a satellite image (Landsat 8, panchromatic band) at 15m pixel size. My goal is to upscale the image (i.e., change the pixel size) at 460m using a Gaussian filter with sigma = 0.5. Is there a function in python that can do this (i.e., increase…
Nikos
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