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Certify enables you to upload geospatial and measurement data for project areas that form part of your CDR projects.
Note that the Field measurements and Project areas pages are in the process of being deprecated in Certify in favour of a unified Project Assets model.For Enhanced Weathering projects on older protocol versions, geospatial and measurement data is managed via the Removal areas on the Field measurements page.For Reforestation projects, data is submitted via the Project areas page.

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Removal areas (Enhanced Weathering)

Each removal area is a group of project areas, such as fields, that will be credited together. For EW projects, each removal area consists of control, treatment, and (if using the 3-plot model) deployment plots, which have similar soil conditions and typically follow the same crop rotations. You can upload GeoJSON files representing your removal areas as follows:
  1. Go to the Removal areas tab.
  2. Click Add removal area, select your files, and click Upload.
  3. Uploaded polygons will be rendered in the plot map preview, where you can toggle between private and public views.
  4. Click Done to see the uploaded removal area displayed in a table.
Public vs. private map views: the private view displays detailed field boundaries and is visible to you, Isometric, and your assigned VVB. The public view hides inner field boundaries for anonymization in the public registry.

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Measurement locations

Upload latitude-longitude pairs where samples are taken within removal areas:
  1. Go to the Measurement locations tab.
  2. Download the CSV template to see what data you need to provide.
  3. Populate the template with your measurement locations and export it as a CSV.
  4. Click Add measurement locations, select your file, and click Upload.
  5. Uploaded locations will be rendered in the plot map preview.
  6. Click Done to see the uploaded measurement locations displayed in a table.
Once a measurement sample has been associated with a measurement location, that measurement location can no longer be deleted to ensure data integrity.

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Samples

Upload the sample data required based on your project setup.
  • Soil and Biomass samples are required for all EW projects for baseline characterization and quantification of the plant uptake loss, respectively.
  • Porewater and Ion exchange resins are only required where this data is used for quantification or validation.

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Upload sample data

  1. Go to the Samples tab.
  2. Click the sample type you want to upload data for.
  3. Download the CSV template.
  4. Populate the template with your sample data and export it as a CSV.
  5. Click Add samples, select your file and click Upload.
  6. Uploaded samples will be displayed in a table, where you can inspect individual datapoints by clicking into each row.
For each sample, the required fields are:
  • supplier_reference_id
  • measurement_location_id (assigned by Isometric in the format mlc_XXXXXXXXXXXXXXXX)
  • measurement_date
Other columns in the template CSV are optional, depending on whether the particular measurement property is recorded by the corresponding sample. To ensure your sample data is linked to the correct measurement location, you can download a CSV mapping Isometric-assigned measurement location IDs to your self-assigned supplier reference IDs from the Measurement locations tab.
We recommend using a consistent naming system for sample supplier reference IDs, such as:project-code_measurement-location-code_sample-type_sampling-eventFor example 01_001_soil_baseline.

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View data on the map

  • Click View on map on any tab under Field measurements.
  • Explore all uploaded removal areas and measurement locations.
  • Click a measurement location pin and View X samples in the top-left box to inspect the measurement data for samples taken at that location.

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Project areas (Reforestation)

A Reforestation project uploads its geospatial and measurement data in the Project areas section rather than in Field measurements. The section holds a three-level hierarchy: each project area contains field plots, and each field plot contains tree measurements.

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Add a project area

A project area includes one or more land areas managed in the same way. Each project area must cover at least one hectare. CDR quantification is carried out per project area.
  1. Click Project areas in the left-hand navigation.
  2. Click Add area.
  3. Enter a Name and a unique Reference ID.
  4. Select one or more GeoJSON files and click Upload.
  5. Click Done to see the project area in the table.
If your project area includes land areas where either different species mixes are planted, or trees are planted at different times, provide each of these areas as a separate feature in your GeoJSON upload. Add properties to each feature to indicate how the areas should be grouped, so that Certify can associate them correctly.
The boundary of an individual polygon must not intersect itself, and the boundaries of multiple polygons must not intersect each other. If Certify reports an invalid topology, open the file in QGIS and run Vector → Geometry Tools → Fix geometries.

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Add field plots

A field plot is a defined area within your project area where tree parameters are measured to quantify above-ground biomass (AGB).
  1. Open a project area and go to the Field plots tab.
  2. Download the GeoJSON template, or the data example, to see the structure Certify expects.
  3. Populate the template. Each feature is a polygon with name, description and reference_id properties.
  4. Click Add field plots, select one or more files, and click Upload.
  5. Click Done to see the field plots in the table.
Each field plot must have a unique reference ID. Certify uses it to link each tree measurement to the correct plot.

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Add field measurements

Tree measurements estimate the above-ground biomass (AGB) within each field plot, which quantifies the carbon sequestered in the project area.
  1. Open a project area and go to the Measurements tab.
  2. Download the CSV template, or the data example.
  3. Populate the template and export it as a CSV.
  4. Click Add measurements, select your file, and click Submit.
  5. Certify processes the file in the background. When it finishes, open the Measurements tab to see the measurements and their datapoints.
The template contains these columns:
Certify reports the tree type keys it does not recognise, and suggests the closest match. Check the tree measurements reference for the full list.

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View and export project area data

Each project area has three tabs:
  • Area overview shows the project area and its field plots on a map.
  • Field plots lists the field plots, with their reference IDs and geometry.
  • Measurements lists the tree measurements, with their field plot reference ID, species and measurement date. Click a row to inspect its datapoints.
To export your data, open a project area, click the actions menu, and click Export. Select any combination of Project area, Field plots and Measurements, then click Export. Certify downloads a single file for one selection, and a zip archive for more than one.

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Addressing errors in uploaded data

If a file has the wrong data in it, delete the affected records with the table checkboxes and Delete button, then re-upload a corrected file. Where a record can no longer be deleted — because it is already in use, or it is referenced by a verified GHG Statement — contact your Registry Operations Manager.