High-fidelity 4D data representing Contrail forcing index values on axes of latitude, longitude, altitude, and time.
Data format
Grids are in NetCDF4 format.
These grids cover the whole globe as a quarter-degree grid, in which latitude and longitude steps are 0.25 degrees. Each grid is forecasted for a full hour (UTC).
Contrail forcing index values range from 0 to 4, from no significant warming to severe contrail warming.
Grid dimensions
| Name | Type | Description |
|---|---|---|
longitude |
float32 |
-180 to +180 (inclusive), as configured in the request. Grid resolution is 0.25 degrees. |
latitude |
float32 |
-90 to +90 (inclusive), as configured in the request. Grid resolution is 0.25 degrees. |
flight_level |
int16 |
[270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440], as configured in the request, in hectofeet. Flight levels are derived from pressure levels. |
time |
datetime64[ns] |
The requested real world forecast date and time, in UTC. |
forecast_reference_time |
datetime64[ns] |
Date and time at which the forecast was computed, rather than the time of forecast itself, in UTC. |
Contrail forcing index values
contrails (float32): (longitude, latitude, flight_level, time) continuous
contrail forcing index values from [0 - 4].
Severity values can be interpreted as:
| Value | Interpretation |
|---|---|
| 0 | None |
| 1 | Low (light) |
| 2 | Moderate |
| 3 | High (severe) |
| 4 | Extreme |