HALOWERKNaturwerk
growing degree days
Accumulates growing degree days at a location from the hourly forecast, for a base temperature you choose. Two methods are returned side by side: the hourly integration, which is the more accurate, and the conventional average of daily maximum and minimum, which is what agronomic tables and most published thresholds are built on. Reporting only one would either be less accurate or incomparable with the literature, so both are given with the difference between them stated. An optional upper.
POST https://natur.halowerk.com/v1/growing-degree-daysEingaben
| Feld | Typ | Pflicht | Beschreibung |
|---|---|---|---|
| lat | number | Ja | |
| lon | number | Ja | |
| base_temp_c | number | Nein | Base temperature. 10 °C is common for maize, 5 °C for cereals. |
| upper_cutoff_c | number | Nein | Optional upper limit above which extra heat does not count. |
| thresholds | array | Nein | Accumulated GDD values whose reaching date you want. |
Vollständiges Eingabeschema anzeigen
{
"type": "object",
"required": [
"lat",
"lon"
],
"additionalProperties": false,
"properties": {
"lat": {
"type": "number",
"minimum": -90,
"maximum": 90
},
"lon": {
"type": "number",
"minimum": -180,
"maximum": 180
},
"base_temp_c": {
"type": "number",
"minimum": -5,
"maximum": 25,
"default": 10,
"description": "Base temperature. 10 °C is common for maize, 5 °C for cereals."
},
"upper_cutoff_c": {
"type": "number",
"minimum": 15,
"maximum": 45,
"description": "Optional upper limit above which extra heat does not count."
},
"thresholds": {
"type": "array",
"maxItems": 6,
"items": {
"type": "number",
"minimum": 1,
"maximum": 5000
},
"description": "Accumulated GDD values whose reaching date you want."
}
}
}Veröffentlichtes Eingabebeispiel
{
"lat": 52.52,
"lon": 13.405,
"base_temp_c": 10,
"thresholds": [
50,
100
]
}Ergebnis & Dokumentation
Maschinenlesbare Dokumentation dieses Hubs
Quelle dieser Seite: der veröffentlichte HALOWERK-Katalog. Stand: 2026-11-01, 15:19 UTC.
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