Questions tagged [cloud-gis]
GIS database and services hosted as scalable server (or serverless) environments in the cloud.
72
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Cloud filtering Landsat collection 2 over specific regions and more
I seem to have some problems with Landsat collection 2 images. I'm trying to get an NDVI time series over specific regions. I have a number of problems in my code for which I couldn't find the ...
1
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1
answer
39
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Filter Sentinel-3 data based on cloud cover over a region of interest
I am using a modified code (see below) from here (Filter Sentinel-2 images base on cloud cover over a region of interest) to filter Sentinel-3 images based on their cloud cover over my region of ...
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1
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1
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109
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French point cloud data won't render properly in QGIS 3.22.3
A question to the 3-D literate QGIS crowd: I downloaded .laz files from the French LiDAR data portal (https://geoservices.ign.fr/lidarhd#telechargement) and can't get it displayed in QGIS 3.22.3 (...
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42
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To remove clouds of Landsat 8 surface reflectance products
I want to remove clouds from the collection of images and replace new values with pixels of clouds. I have written code, but it's not working.
Here is my code:
var table = ee.FeatureCollection("...
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22
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How to filter for Sentinel-2 scenes that don't contain all band data
The registry of open data in AWS lists Sentinel-2 satellite imagery in requester-pays s3 buckets. How would one build a list of scene folders, per tile, for which all 13 bands (*.jp2 files) are ...
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Image.select: Pattern 'probability' did not match any bands on s2cloudless
On early days of S2 up to almost 2017, Sentinel-2 Cloud Masking with s2cloudless returns the error:
Image.select: Pattern 'probability' did not match any bands.
You can check this by changing 2020 to ...
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22
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QGIS - SCP Classification - Clouds and Shadows
I am working with QGIS 3 and classifying images in Indonesia. Indonesia has a high cloud coverage. I started with classifying a Sentinel 2 image with the SCP Tool and got my classification output.
I ...
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310
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Connecting to Snowflake cloud warehouse to accessing data tables in QGIS
Is there a way in QGIS to connect to a Snowflake cloud data warehouse using ODBC, or other? I would like to access this data storage to natively create spatial content by accessing the WKT, Geography, ...
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31
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Adding Point cloud in Qgis2three
Im trying to add a point cloud in "qgis2threejs". Im following this tutorial https://www.youtube.com/watch?v=EtnzS1Lg0bs&ab_channel=HansvanderKwast but when i add the ept.json-file ...
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2
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QField connected to Cloud
My question is if it would be possible somehow to upload the data taken in the field using QFIELD in the cloud. I would like to know if there is any similar workflow as with, for example in ArcGIS, ...
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660
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How can I extract only Polygons from Google Earth Engine's Feature Collection?
I have here a shapefile which contains some limits of productive areas from the company I work for.
When I open it with ArcMap it seems there are only polygons, and indeed the source tab from layer ...
- 105
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2
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69
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Sharing data in small remote organization
My company's GIS "department" currently consists of myself and another analyst, located in offices several states apart. We have been looking for ways to share GIS data between ourselves as ...
- 131
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3
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276
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Where can I host GeoServer that will allow multiple users to edit on ArcMap?
We have several spatial data editors spread across the US, each having to access the same data. What we need is a multi-user spatial database that can be served up through GeoServer, hosted on the ...
2
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1
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162
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Feature info in QGIS Cloud [duplicate]
By clicking on a point on a map at a detected site, numerical values appear from a qc_id field automatically generated in the layer, in the attached SS showing the value 16.
I would like the value of ...
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284
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Hosting webmap on Google CLoud Storage without compromising data
Does anyone know how to host a webmap (made with QGIS and Leaflet) on Google Cloud Storage publicaly, so that the HTML showing the webmap is accessible but the data driving the map is not. Bucket ...
2
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1
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349
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QGIS Cloud: WFS error Download of capabilities failed: Protocol "" is unknown
I published a map with several vector layers from QGIS 3.4 to QGIS Cloud (with the plugin). I activated WFS in the project properties. However, when I try to connect to WFS in QGIS desktop, the ...
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136
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Data upload error in QGIS cloud
I want to publish my .shp file but I am facing one uxpected error.
could not connect to server: Connection refused (0x0000274D/10061) Is
the server running on host "db.qgiscloud.com" (136.243....
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41
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How to create coordinate system (using Lat/Long) across IR & VIS satellite images
A recent project of mine has been to gather IR and VIS data from WeatherUnderground's online site for the purposes of creating fun and informational temporal GIFs. Now, I'd like to take it a step ...
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77
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Read laz files are stored on IBM COS
I have a problem with reading laz files that are stored at IBM cloud object storage.
I have built pywren-ibm library with all PDAL requirements - one of them with docker. I then deploy it to IBM ...
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1
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QGIS and remote PostgreSQL/PostGIS slow performance
I'm using a cloud service for hosting my PostgreSQL/PostGIS database.
When connecting with QGIS, its extremely slow.
The observed behavior is:
Connecting to PostGIS DB: works great.
Adding a layer ...
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1
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2k
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Get a mask for MODIS (250m, MOD09GQ) using MODIS (500m, MOD09GA) in Google Earth Engine?
How can I use the quality information stored in MODIS (500m) to create a mask for my MODIS (250m) image - e.g. cloud mask? When I merged the two image collections and run a function to detect the ...
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2
answers
492
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Hosting a few shapefiles so multiple users could use and edit the same map
Is there a way to synchronize a QGIS map with vector layers so that 3 or 4 users can use and edit the same file? I have a plug-in that updates shapefiles on a layer and it would be great to ...
- 753
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884
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Export image collection Google Earth Engine to Google Cloud Bucket Python API
I have an image collection within GEE's Python API that I want to clip and write to my google cloud bucket. I am working on a Google Cloud VM and have mounted my bucket "gee-bucket22" with gcsfuse. I ...
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2
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429
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maskClouds vs filter clouds on Google Earth Engine
On Lab 6: Time series analysis from https://developers.google.com/earth-engine/edu, there is maskClouds:
var maskClouds = function(image) {
var quality = image.select('BQA');
var cloud01 = ...
- 503
3
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1
answer
4k
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Is it possible to serve vector tiles directly from S3?
I have seen that it is possible to use S3 as a storage backend for vector tile servers such as Tegola. These work by fetching the tile from S3, then serving it through an application server.
Is there ...
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QGIS installation on a cloud platform
I would like to install QGIS on a cloud platform, like AWS/Amazon cloud for example. Do you think this is a valid solution? For my work I have to upload several satellite images (Sentinel and Landsat) ...
- 161
2
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1
answer
164
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Serverless geospatial data type conversion (similar to ogr2ogr)
Is it possible to run ogr2ogr or Python/Fiona in a serverless environment where each feature gets processed in parallel and where you don't have to specify the properties of a virtual machine upfront? ...
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2
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269
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Is it possible to show labels in QGIS CLOUD?
I have recently purchased the QGIS Cloud PRO version, but when I upload a map, I cannot visualize the labels of each layer.
Obviously, I have the labels activated on QGIS, but they just don't appear ...
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answer
1k
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Can QGIS read/load a zipped shapefile or Geopackage from a URL/URI?
Does anyone know if it is possible to load a vector layer in QGIS (not stored in a RDBMS) from a URL/URI?
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1k
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GEE Landsat SR year composite // mask cloud / shadow out w/ other method than quality pixel
Has anyone found a good solution to mask out cloud/shadow cover not using quality assessesment pixels or combining it with something else?
I am trying to generate cloud/shadow free composite for a ...
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217
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masking in ENVI [closed]
I have surface reflectance generated NDVI which I got from ESPA interface, https://espa.cr.usgs.gov. How do I mask cloud with Qa band in ENVI?
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1
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3k
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How to apply a Cloud Mask in Google Earth Engine? (Landsat 5 TM 8-Day NDVI Composite)
I need to download ndvi values for some pixels for 2000-2001 using the Landsat 5 TM 8-Day NDVI Composite, but since there is no quality band as in mod13q1 there's no way to filter by quality. ...
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2
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1k
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QGIS calculate sum of values in more raster layers
I have cloud masks (rasters) of diferrent days (from sentinel 2a product) and I would like to calculate how many times was some area covered by clouds. My basic idea is put all layers on each other ...
- 371
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1
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2k
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Using QField with Multi-User Access also Offline?
I got 10-20 QGIS-Users which edit all one Project online and offline. Sometimes they do it at the same time. Until now we only used QGisDesktop with a PostGis Database stored in QGIS Cloud(50MB ...
- 115
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505
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Cloud masking of Sentinel-2 product using SNAP [closed]
I am using Sentinel-2 images in tropical region where almost all image contains clouds which needs to be masked out.
What is the best way to remove the clouds from the image in all the bands, is SNAP ...
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618
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QGIS cloud, add map to a web page [closed]
Is it possible to add a map which is published to QGIS cloud, on another web page? As a script code, like customised Google maps for example
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110
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Sharing/exporting map created in QGIS for different people in Company? [closed]
I created a QGIS map with several different layers.
I want to know a light way method to share it locally with staff. If I can be pointed to the different export formats that may work for me in Qgis. ...
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1
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189
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Cloud and cloud shadow masking for old LANDSAT and ASTER images in GRASS
I am trying to remove cloud and cloud shadows for Landsat 4-5 ASTER images in GRASS GIS.
I have knowledge that detecting cloud and cloud shadow pixels which is >(255*0.2), but I cannot figure out ...
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1
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25
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How to create a web map which can't be traced back to yourself? [closed]
Hypothetically speaking (of course) say that you wanted to do a Wikileaks-style exposé of some spatial data, without it being traceable back to yourself.
The data could be points, line and polygons (...
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1
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154
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ESRI ArcGIS for Server AMI for Amazon EC2 reserved instances
I read several online documents on using ESRI's Cloud Builder to optmimally set and fire up ArcServer AMIs on Amazon EC2. However, everything seems oriented toward selecting and launching on-demand ...
- 141
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323
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Encryption of spatial data, GIS access and cloud synchronization
I'd like to encrypt a folder of many spatial datasets (rasters and shapes) because my office computer is shared with others. I've never used this kind of security but I think I should preserve my data ...
2
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182
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WMS Layers from Azure Geoserver not loading with multiple users
I am loading multiple WMS layers into a leaflet web application from an Azure virtual machine Geoserver that pulls data from a PostGIS database on the same machine.
The layers load through quickly ...
- 731
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2
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138
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GIS Cloud Publisher for ArcMap extension does not work
GIS Cloud Publisher is an extension from GISCLOUD.COM that allows one to publish from ArcMap to GIS cloud directly. I followed the instruction provided on the website concerning the installation but ...
- 379
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1
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1k
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Is it possible to host MapServer in the cloud, specifically in Azure?
Can MapServer be hosted in the cloud?
I presume as a virtual machine, or is it possible to have it as an Azure Web App, and avoid the hassle of VM maintenance
And by cloud, I mean Microsoft ... but ...
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3
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4k
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Is it possible to install GeoServer On Google Cloud?
How can I can install GeoServer on Google Cloud?
5
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1
answer
232
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Running OpenGeoSuite on Openshift
Has anyone been able to run OpenGeoSuite on openshift using the free 3 gears? There is plenty of documentation on getting geoserver running on openshift there is even a GIT repo. However I have not ...
- 1,258
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49
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QGIS Cloud shape upload runtime error
Using QGIS 2.12, Qgiscloud version 1.1.14 (on OSX 10.11). When uploading a shape (with 427 lines), I get this error:
Aanmaken van velden mislukt
Traceback (most recent call last):
File "/Users/...
- 11
2
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1
answer
228
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Cloud based database solution [closed]
I'm looking for a cloud based database solution where I can store about 1 GB worth of tabular data and both myself and my client can access to perform SQL queries. I'm looking for this database to ...
- 479
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0
answers
72
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Cloud-based WMS service: transactions estimator? [closed]
My organization is quite a medium-large organization (5,000 employees) and is facing some severe budget cuts. Resources are sparse and we are looking at using cloud-based service for our Base-mapping ...
- 161
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2
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1k
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how to remove cloud values of Landsat image from R [closed]
How can I remove cloud value of the Landsat8? How can I estimate cloud values for eg: modis cloud values are from 700 to 800. By using R how can I estimate>
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