Data · dataset
Analysis of Air Temperatures Related to Sea Ice Formation in the Estuary and Gulf of St. Lawrence | Analyse des températures de l'air liée à la formation de la glace de mer dans l'estuaire et le golfe du Saint-Laurent
Listed in St. Lawrence Global Observatory - CIOOS | Observatoire global du Saint-Laurent - SIOOC
This dataset contains values calculated using existing data produced by Environment and Climate Change Canada (ECCC).
Description
Freezing degree-days (FDD) correspond to the negative difference between the average daily temperature and the freezing point of seawater (Tf = -1.8°C). For example, if for one day the average temperature is -21.8°C, it raises the annual FDD value by 20.0 FDD.
When the daily averaged temperature is above Tf, the FDD value is negative. FDDs are summed starting on September 1st each year. When the cumulative number of FDDs (CFDD) becomes negative, it is reset to zero.
Read the rest (2 more)
The start of winter corresponds to the first time the CFDD is and remains above 0. In this data set, the daily temperature averaged over the entire marine domain of the Gulf of St. Lawrence is used.
The data comes from surface temperature forecasts (T2m) from ECCC's High Resolution Deterministic Prediction System (HRDPS).
Links
Where it is published
- ERDDAP dataset info erddap.ogsl.ca/erddap/info/ismerFreezingDegreeDay/index.html ↗
landing page · from erddap ogsl ca
Documentation and papers
- Dataset documentation ogsl.ca/cartesglacesstlaurent ↗
documentation · from erddap ogsl ca
Catalogue records · 1
- ERDDAP tabledap access form erddap.ogsl.ca/erddap/tabledap/ismerFreezingDegreeDay.html ↗
metadata API · from erddap ogsl ca
Topics
- From keywords
- Ocean & Atmospheric Science
Provenance · 1 source records, 5 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| St. Lawrence Global Observatory - CIOOS | Observatoire global du Saint-Laurent - SIOOC | ismerFreezingDegreeDay | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · erddap ogsl ca | connector:erddap_ogsl_ca@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · erddap ogsl ca | connector:erddap_ogsl_ca@1.0.0 | |
| description | source · erddap ogsl ca | connector:erddap_ogsl_ca@1.0.0 | /summary |
| temporal | source · erddap ogsl ca | connector:erddap_ogsl_ca@1.0.0 | |
| title | source · erddap ogsl ca | connector:erddap_ogsl_ca@1.0.0 | /title |