Questions tagged [google-earth-engine]
Google's cloud computing platform for geospatial data & analysis at earthengine.google.com.
5,746
questions
0
votes
0
answers
31
views
Extracting QA bits for cloud mask with MOD09GA state 1km band using Google Earth Engine
I'm working on code for detecting fog and low stratus (FLS) using the QA bits from the state_1km band of the MOD09GA.061 product. I'm trying to select pixels classified as clouds (bit 0-1 Cloud State: ...
0
votes
0
answers
27
views
Zonal statistics (area of pixels google earth engine) in vector polygon using integer raster
I am trying to calculate zonal statistics from a integer raster within a vector polygon calculating sum of pixels area in google earth engine. For this, I use this script.
// Visualization parameters ...
- 1
0
votes
0
answers
23
views
Global Flood Database v1 unmask 'jrc_perm_water'
I am using Google Earth Engine to generate mean area flooded in electoral districts of India.
What is a good way to remove the values of permanent water from the 'flooded' band and generate aggregate ...
1
vote
1
answer
36
views
GEE - Mean Cloudiness in a given time range, Sentinel producing multiple points for each day
I am trying to create a plot that represents mean cloudiness against day of year using Sentinel-2. As the plot shows, there are multiple points for a given day and it's very choppy. Should Sentinel be ...
- 11
1
vote
1
answer
27
views
Using iterate to reclassify an image in Google Earth Engine
I'm currently working on transforming a raw DEM image into a reclassified image based on elevation ranges, assigning specific classes to certain elevation intervals. For instance, elevations between 0 ...
- 1,327
1
vote
1
answer
18
views
Google Earth Engine. Converting circular structure to JSON error
I am trying to filter road data from open street map to only roads that fall within a specified region in Earth Engine. The filterBounds commands is printing the following error:
Line 24: Converting ...
1
vote
1
answer
46
views
How to create the fishnet grid in GEE using JS code editor?
I want to create a 10*10 pixel size grid for my AOI.
1 pixel = 10m
var cellSize = 100; // Size of each grid cell
// Get the bounds of the AOI
var bounds = aoi.geometry().bounds().coordinates().get(0)...
0
votes
0
answers
23
views
Adjusting the control panel in GEE
I try to adjust the the size and distance of customized drawing tool control panel, but it failed. Specifically, I want to reduce the size of drawing sympols and control panel and move the control ...
- 211
0
votes
0
answers
14
views
Trying to remove non relevant plot points from a ui.chart.image.series in Google Earth Engine script
I am writing a pretty basic script to calculate the median NDVI in an ROI (in this case titled Naussac) in and then put it in a chart using the ui.chart.image.series function. The chart works, but ...
- 1
1
vote
0
answers
29
views
Unexpected output from masked area calculation in Google Earth Engine
Using a 500m MODIS burned area dataset in GEE, I want to find the area burned in a period of time (say, a few months). Specifically, I want to find the area of pixels that have burned one or more ...
- 63
1
vote
1
answer
19
views
GEE function to apply annual reducer for multiple years in image collection
I'm working with a GEE image collection that includes multiple images for each year
var studyRegion = ee.FeatureCollection("FAO/GAUL/2015/level0")
.filter(ee.Filter.eq("ADM0_NAME", ...
- 315
0
votes
1
answer
19
views
Printing the date of the first unmasked image in an image collection [closed]
I have applied two masks to the Sentinel-1 Image Collection. I have masked all MYI images, as well as those whose backscatter change (vs. the backscatter mean) is lower than a certain threshold. Let's ...
- 1
0
votes
1
answer
34
views
Null values after reduceRegion() in GEE
I took two datasets - WorldCover 2020 for builtup (100m), and MODIS for LST (1km), and clipped them to a predefined geometry.
I then aggregated the builtup data to 1km resolution as given here.
Then I ...
- 28
0
votes
0
answers
27
views
Soil moisture mean per pixel, per year, for a whole country
I am trying to calculate the soil moisture (mean per pixel, sm_surface) for Somalia using the SMAP Level-4 Dataset for the year 2019. The session crashes (user memory limit exceeded) when I run my ...
- 95
0
votes
2
answers
20
views
Exporting TIFFs in GEE results in skinny vertical line of pixels
I have to do a task that involves exporting TIFFs, but unfortunately no matter what I've tried I just get these tiny files that look like a single, thin strand of black pixels when I put it into QGIS.
...
