Submit a historic flood event or correct an existing record. Use one row per affected location and event date, with a traceable source and documented impacts.
Prepare your submission
Fill in the blank Data sheet in the XLSX workbook. The Field guide describes every column, its units and examples. You can also use the CSV with the same headers.
Leave unknown values blank. For a correction, include the existing id and explain the change in submission_notes.
Required fields
| Field and column | Format and unit | What to provide |
|---|
Event start date
date_of_commencement | YYYY-MM-DD (text) | Documented start date as YYYY-MM-DD text, including dates before 1900. If the exact date is uncertain, explain the documented date in submission_notes. |
|---|
Country
country | Text | Country containing the submitted site. Contributions are not limited to the current geographic coverage. |
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Administrative area or locality
location_name | Text | Administrative area or locality affected by the flood. |
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Affected place or event
flood_event_name | Text | Specific affected settlement, site or recognised event name. |
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Latitude
latitude | WGS84 (degrees) | WGS84 decimal latitude. Use a minus sign south of the equator. |
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Longitude
longitude | WGS84 (degrees) | WGS84 decimal longitude. Use a minus sign west of Greenwich. |
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Supporting source
source | Text | Traceable publication, DOI, report or source URL supporting this record. Include page or figure numbers where relevant. |
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Optional fields (7)
| Field and column | Format and unit | What to provide |
|---|
Existing record ID
id | Whole number | For a correction, copy the ID of the existing map record. Leave blank for a new record. |
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Recorded fatalities
deaths_toll_int | Whole number | Number of recorded deaths. Blank means unknown. Zero means explicitly none. |
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Reported cause
cause_of_flood | Text | Cause of the flood as documented by the source. |
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Rainfall duration
rainfall_duration | Text | Reported duration including its unit, such as hours or days. |
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Rainfall amount
rainfall_height | Text | Reported precipitation depth including unit and measurement period. |
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Documented impacts
relevant_information | Text | Recorded damage, affected infrastructure and other relevant event details. |
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Submission notes
submission_notes | Text | Explain corrections, coordinate accuracy, measurement methods, vertical datum and any uncertainty. Identify attachments here. |
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Site guidance
- Enter historic dates as YYYY-MM-DD text so dates before 1900 are preserved in Excel.
- Do not invent a day or month when the source gives only a year. Describe an uncertain date in submission_notes so the team can assess it.
- A blank death toll means unknown. Enter zero only when the source explicitly records no fatalities.
- Keep rainfall duration and rainfall height separate. Retain the reported units, period and any ranges or uncertainty.
- Place names may use their normal spelling. Uppercase text is not required.
Include contributor names, affiliation and contact details in your email. Attach the completed file and supporting sources manually. The research team reviews each submission before publication.
