VH RODA 23 - Questionnaire for GCPs repository

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In order to test the GCPs repository on the CEOS Cal/Val Portal (https://calvalportal.ceos.org/gcps-vhr), please use the temporary (until 8th December) user account - username and password are respectively: vhr_gcps@gmail.com ; vhr_2023

Context

With which type of missions are you dealing with? In particular, regarding spatial and spectral characteristics of the instrument.

Do you consider geometric quality of EO product as a critical parameter for your purposes?

Scope of your interest in geometric reference based on your activities

For calibration/validation/production?

Which processing level? Products?

Which geolocation performance items are monitored?

What type of data is required?

Raster Reference

Ground Control Point (GCP) ground coordinates (measured with GPS?) with on-the-field description

GCP Database including image chip

Other:

Clear selection

Are you expecting altitude information?

Attached to vector data

Attached to raster data

Other:

Clear selection

Are you expecting particular content/object?

Building

Crop fields

Water surface (lakes, ponds, etc.)

Roads

Forests

Other:

Are you expecting particular GCPs?

Thermal

Night time

Seasonal

Other:

Did you already investigate/use some existing GCP database or Geometric reference?

Copernicus Sentinel-2 Global Reference Image (S2 GRI)

Landsat

Airbus Ground Control Points

USGS DOQ

BING / Google Earth

Other:

More about technics involved in GCPs database

Which matching method?

Which calibration method?

Which geometric processing method?

Which measures/metrics?

ESA GCP Data sharing prototype

*Required account for accessing to https://calvalportal.ceos.org/gcps-vhr **Refer to https://qgiscloud.com/calvalportal/GCP_db_v09_cloud/

Do you think CEOS Cal/Val portal is a good place to share GCP data documentation?

Do you think that level of information in the GCP description files is sufficient?*

Do you have any feedbacks regarding GCP viewer user interface?**

Would you be ready to share GCPs as open data?

Would you be ready to review GCPs before upload / integration into CEOS Cal/Val portal?

What would be your preferred GCPs exchange procedure?

Do you prefer to get GCPs and documentation by using?

Dedicated API (QGIS)

GUI on website

Other:

Clear selection

Do you prefer to upload GCPs and documentation by using?

Dedicated API (QGIS)

Web form

Other:

Clear selection

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