Questions tagged [time]
A nonspatial continuum in which events occur in apparently irreversible succession from the past through the present to the future
332 questions
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Memory management in PyQGIS during loop
I have a issue about memory management in PyQGIS during loop.
I'm writing a code where there is a while loop.
During the operatione inside the loop that are almost the same,I noticed that the ...
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GEE Temporal Collection Landsat 8 C2L2T1 : Error: map(ID=0) Image.multiply: If one image has no bands, the other must also have no bands. Got 0 and 1 [closed]
I am struggling with an Error of missing Bands from a temporal Landsat8_C2_L2_T1 Image Collection while retrieving the temperature over a time range.(tried it with 1 year and 10 years. same problem.)
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Estimate time spent by ships in each grid using ArcGIS Pro
I have data on yearly ship movements in an area. The area is divided into 1km x 1km grids.
The yearly ship movements are available in the form of tracks which are polylines. The tracks feature class ...
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4
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1
answer
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QGIS can't create layers with DateTime with UTC data
I was creating a geopackage of points with a DateTime field, and the QGIS (version 3.32.3-Lima) seems to treat it as naive localtime data.
Layer/CreateLayer/NewGeopackageLayer:
Layer properties/...
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Expression Builder using times
I have brought in vector layer from a .csv file containing Total Response Time for Emergency Services Incidents. While the times are in HH:MM:SS format I believe that having brought it in as a .csv ...
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2
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1
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951
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Find correct URL for WMTS Time layer for Leaflet
So I have this WMTS-Layer (the GetCapabilities Request):
https://wmts.marine.copernicus.eu/teroWmts/GLOBAL_MULTIYEAR_WAV_001_032/cmems_mod_glo_wav_my_0.2_PT3H-i_202112?request=GetCapabilities&
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- 1,459
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NDVI temporal analysis error in Sentinel
I need to do a temporal analysis of NDVI with Sentinel images from 2019 to 2023, using monthly composites and extract the NDVI value for random points created. However, it is generating empty data.
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Extract Multi Values to Points for two time-enabled layers using ArcGIS Pro
I have a time-enabled point layer (5-minute resolution) and time-enabled raster layer (hourly resolution). I'm trying to create a new field in the point layer by extracting values, but it's doing so ...
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2
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1
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QGIS Dynamic aggerate only features visible in time slice
I am unable to figure out how to only sum the lengths of the features visible in the map between @map_start_time and @map_end_time? The aggregation works changing over time but seems to include all ...
- 57
2
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QGIS Temporal Controller dynamic text
I have a temporal dataset and it animates and I have a dynamic title displaying the time period, but I am unable to get a dynamic label to report the length of the linear features at that time period.
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QGIS 3D viewer autoupdate frames from temporal controller
I am using QGIS 3.30.3 and I am trying to make a cinematic with the 3D viewer of some flood tiles.
I have a Digital elevation Model and a few flood tiles with temporal information. Using the temporal ...
3
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4
answers
357
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Extracting 'hour' from 'time_stamp' with QGIS
I am trying to extract the hour from my time_stamp which is in the format dd/mm/yyyy 00:00:00 as a textstring.
I am using the expression hour("time_stamp") in the field calculator, but the ...
2
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2
answers
171
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Invalid unixTime error when processing GPKG file with ogr2ogr
I am looking at forestry data of Finland's Etelä-Savo region. I download the data:
curl -L -O https://avoin.metsakeskus.fi/aineistot/Metsankayttoilmoitukset/Maakunta/MKI_Etelä-Savo.zip
Unzip it:
...
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Timelapse in GEE
This code is working and the video is active but only images are there. I couldn't add the date (year) to the images. How can this step be accomplished?
// Define your collection
var collection = (ee....
4
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1
answer
473
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Animating travelled path in QGIS without temporal information and temporal controller
In QGIS, I have a path (line layer) that I want to animate: it should succesively build up like showing a point marker that "drives" along the line and shows (unveils) the part of the total ...
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