Geographic Information Systems Questions, Problems & Solutions : TransWikia.com ~ Page 489

Adjusting the map ratio in such a way that Time Manager videos are consistent with YouTube resolution formats

I've recently made a time lapse video depicting migrants deaths in the Mediterranean Sea and surrounding areas in 2020. It was made in QGIS by means of the Time Manager...

Asked on 12/12/2020

0 answer

Python scripting (update cursor, extract previous row values)

I am new to Python scripting. I would like to use SearchCursor to iterate in each row using the FID as index. Then I would like to evaluate length based...

Asked on 12/12/2020 by zitJack

1 answer

How can I combine USGS GeoTIFF quadrangles into a single GeoTIFF using `rasterio`?

There are several similar questions about this but most as about QGIS and are non-specific about the data involved. I have a specific data source/format and I need to use...

Asked on 12/12/2020 by medley56

0 answer

Extract values from Grib-files at several specific locations

I have got a GRIB file from ECMWF for a small area in the Antarctic. It contains hourly data for one month of multiple variables (eg. wind, seaicecover, sst etc.)....

Asked on 12/12/2020 by RedKite75

1 answer

Using ArcGIS API for Python and Windows Authentication?

I've been trying to follow the ESRI recommended workflow to log on to Enterprise (using authentication), but it just doesn't want to work. I'm able to...

Asked on 12/12/2020 by John Johnson

1 answer

How to define the spatial distance ε for EDR and LCSS similarity algorithms?

Let's assume a dataset with human trajectories like Geolife. I want to measure the similarity of two random trajectories from this dataset using the EDR or/and LCSS algorithm(s). I wonder,...

Asked on 12/12/2020 by e7lT2P

0 answer

Reproject, then clip or clip, then reproject?

I have a fairly simple question. I have a global categorical land cover map that has no projected coordinate system (i.e. it uses the EPSG:4326 coordinate reference system with no...

Asked on 12/12/2020 by user112922341

1 answer

Conversion of Landsat ToA reflectance to BoA reflectance with an equation

I am using temporal datasets from Landsat 5, 7 and 8.Since I have many datasets I would like to include the conversion from ToA(top of atmosphere) to BoA(bottom of...

Asked on 12/12/2020 by gispaew

2 answer

How to calculate the slope of my polygons using DEM

I downloaded elevation data (DEM) of my study area from NASA and I converted it to slope. How do I calculate the slope of each farm at my study area?...

Asked on 12/12/2020 by Ernest Appiah

0 answer

How can I transform Client to Server Functions in Google Earth Engine

I'm trying to transform client-side functions to server function in GEE. However, I cannot obtain the desired result for the function named "add to list". The problem is that I...

Asked on 12/12/2020

1 answer

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