Project Proposal (Restrained)

1. Go to the ESA User Services Portal
2. Register or log in to EO Sign In - Users are recommended to provide their institutional email address when registering a new account
3. After logging in, complete and submit the form with your proposed use of the data
4. The proposal will be evaluated by ESA, which normally takes between 4 and 6 weeks
5. Upon successful evaluation, you will receive a confirmation email, which describes the amount of data to be provided, and details of how to order the data.

The collection is open for research and application development projects, exclusively for non-commercial and non-operational activities and for civil Earth observation research applications only. Access to the data requires submission of a Project Proposal, which is subject to evaluation and acceptance by ESA and the data owner.

ESA will support as many high-quality and innovative projects as possible within the quota limit available, therefore only a limited amount of products can be allowed to each project.

To identify data availability for your site of interest, you may use the GHGSat online Spectra catalogue. A request for a temporary user account must be submitted to GHGSat Inc. in order to access the catalogue.

Availability and restrictions to the use of the data are described in the Terms of Applicability document.

If you need help with the proposal form, consult this guide on how to access data requiring a project proposal.

For further information about the EO Sign In Service you can visit TellUs.

Should you need support to prepare your proposal or access the data, please contact EOHelp.

GHGSat data produce measures of vertical column densities of greenhouse gas emissions ((currently CH4, but eventually CO2), provided on a pre-defined area of 12 km x 12 km, from the full sensor field-of-view.

GHGSat Catalogue and New Collect data are available in three different data types:

• Single Observation: a single observation of a scene. 
• Monthly Monitoring: guaranteed 12 successful observations in a year over a given site (once per month or flexible best effort cadence depending on weather).
• Weekly Monitoring: guaranteed 52 successful observations in a year over a given site (once a week or flexible best effort cadence based on weather), to accommodate large & persistent monitoring needs.

Data are provided as an Emissions package containing the following products:

• Abundance dataset (Level 2): Set of per-pixel abundances in excess of the local background (ppb) for a single species, and per-pixel measurement error expressed as a standard deviation for a single site on a single satellite pass. Data format is 16-bit GeoTIFF.
• Concentration Maps (Level 2): High readability pseudocolour map combining surface reflectance, and column density expressed in ppb for a single species in PNG format. The relevant abundance dataset is provided as well.
• Emission Rates (Level 4): Instantaneous rate for a detected emission from a targeted source estimated using abundance datasets from a single satellite pass and applying dispersion modelling techniques. The delivered product includes the emission rate estimate with uncertainty and key dispersion parameters (in CSV format) as well as the abundance dataset used for the emission estimate. This product is only delivered in the Emissions package if an emission is detected within the abundance dataset. The Level 2 products will be delivered regardless of whether or not an emission is detected.

The properties of available products are summarised in the table.

Details about the data provision, data access conditions and quota assignment procedure are described in the GHGSat Terms of Applicability.