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Update VPTS CSV landing page to version 1.1 #24

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69f3e74
Add new vpts-csv table schema
peterdesmet Jun 24, 2026
f953b51
Update example
peterdesmet Jun 24, 2026
9feb3ef
Add version table describing the main changes
peterdesmet Jun 24, 2026
580cb73
Clarify definitions + change "ground" to "terrain"
peterdesmet Jun 29, 2026
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20 changes: 17 additions & 3 deletions _data/vpts-csv-table-schema.json
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Original file line number Diff line number Diff line change
Expand Up @@ -23,15 +23,29 @@
{
"name": "height",
"nameAlternatives": ["HGHT", "bin_lower"],
"description": "Lower bound of the altitude bin in m above sea level.",
"type": "integer",
"description": "Lower bound of the altitude bin in m, measured from `height_reference`.",
"type": "number",
"example": "600",
"constraints": {
"required": true,
"minimum": -200,
"maximum": 25000
}
},
{
"name": "height_reference",
"description": "Reference for `height`. `\"sea\"` and `\"antenna\"` are used for heights defined from mean sea level and radar antenna respectively, resulting in horizontal altitude bins. `\"terrain\"` is used for heights that are calculated relative to a digital elevation model for each pixel in the volume.",
"type": "string",
"example": "sea",
"constraints": {
"required": true,
"enum": [
"sea",
"antenna",
"terrain"
]
}
},
{
"name": "u",
"description": "Ground speed component west to east in m/s.",
Expand Down Expand Up @@ -228,7 +242,7 @@
{
"name": "radar_height",
"description": "Height of the center of the radar antenna in m above sea level. Constant for all records from the same `radar`.",
"type": "integer",
"type": "number",
"example": "519",
"constraints": {
"required": true,
Expand Down
17 changes: 12 additions & 5 deletions pages/vpts-csv.md
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Expand Up @@ -14,11 +14,11 @@ VPTS CSV is maintained at <https://github.com/aloftdata/vpts-csv>.
## Example

```
radar,datetime,height,u,v,w,ff,dd,sd_vvp,gap,eta,dens,dbz,dbz_all,n,n_dbz,n_all,n_dbz_all,rcs,sd_vvp_threshold,vcp,radar_latitude,radar_longitude,radar_height,radar_wavelength,source_file
KBGM,2016-09-01T00:02:00Z,0,,,,,,,TRUE,,,,,0,0,0,0,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
KBGM,2016-09-01T00:02:00Z,200,,,,,,,TRUE,,,,,0,0,0,0,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
KBGM,2016-09-01T00:02:00Z,400,,,,,,2.81,TRUE,30.8,2.8000000000000003,1.54,3.77,326,356,22485,28416,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
KBGM,2016-09-01T00:02:00Z,600,4.14,3.84,12.17,5.65,47.2,2.8,FALSE,46.9,4.263636363636364,3.36,0.5,9006,13442,65947,104455,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
radar,datetime,height,height_reference,u,v,w,ff,dd,sd_vvp,gap,eta,dens,dbz,dbz_all,n,n_dbz,n_all,n_dbz_all,rcs,sd_vvp_threshold,vcp,radar_latitude,radar_longitude,radar_height,radar_wavelength,source_file
KBGM,2016-09-01T00:02:00Z,0,sea,,,,,,,TRUE,,,,,0,0,0,0,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
KBGM,2016-09-01T00:02:00Z,200,sea,,,,,,,TRUE,,,,,0,0,0,0,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
KBGM,2016-09-01T00:02:00Z,400,sea,,,,,,2.81,TRUE,30.8,2.8000000000000003,1.54,3.77,326,356,22485,28416,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
KBGM,2016-09-01T00:02:00Z,600,sea,4.14,3.84,12.17,5.65,47.2,2.8,FALSE,46.9,4.263636363636364,3.36,0.5,9006,13442,65947,104455,11,2,,42.19972,-75.98472,519,10.6,s3://noaa-nexrad-level2/2016/09/01/KBGM/KBGM20160901_000212_V06
```

## Requirements
Expand All @@ -37,6 +37,13 @@ The key words `MUST`, `MUST NOT`, `REQUIRED`, `SHALL`, `SHALL NOT`, `SHOULD`, `S
- Data SHOULD have the same `height`s for all `datetime`s of a `radar`.
- Fields SHOULD be organized in the order presented below.

## Versions

Version | Comments
--- | ---
[1.1](https://github.com/aloftdata/vpts-csv/releases/tag/v1.1) | `height_reference` added as a new required column. VPTS CSV 1.0 files without this column should be interpreted as `"sea"`.<br>`height` and `radar_height` type changed from integer to number.
[1.0](https://github.com/aloftdata/vpts-csv/releases/tag/v1.0) | First release

## Fields

Source: <https://github.com/aloftdata/vpts-csv/blob/main/vpts-csv-table-schema.json>