Weather forecasts up to 9 days

Description

The dataset shall contain the values of the meteorological forecast parameters forecasted for the next 9 days. For the first 60 hours, forecast data are for each hour, for a further period – every 3 hours. The frequency of data updates is not regular and varies according to the weather situation, the minimum frequency of renewal of the forecast dataset is 4 times a day. As soon as the LVĢMC specialists prepare a new forecast, it is immediately transferred from the LVĢMC databases to the data.gov.lv portal. For the preparation of forecast data, LVĢMC specialists use data from several international numerical weather modelling centres, performing both algorithmic and manual post-processing. Finally, the data are verified and published as the latest forecast dataset. All datasets are published by UTC time. Work projection of datasets: projstr = +proj=stere +lat_0=90 +lat_ts=60 +lon_0=10 +R=6371220 +units=m +wktext +no_defs +type=CRS The LVĢMC publishes “direct” datasets, which means that they are submerged to the projection in which the LVĢMC servers are also processed. Lat/Lon – the geographical coordinates of the predicted values for which a forecast has been prepared. Coordinates are given in degrees WGS84 system. The coordinate grid uses polar stereographic projection. Datetime – corresponding prediction time of parameter, field format is yyyy-mm-dd hh:mm:ss. The value of the parameter indicated, for example, at 11:00 p.m. This is the first time I've ever seen it. I‘m not sure if I haven’t seen it. 11.00. Value – the predicted value of the parameter at the specified time and point (coordinate). Param – is the short name of the parameter (identifier). The full description of the parameters is available in the binding data set: ‘SSS’ (https://data.gov.lv/dati/lv/dataset/ssss ). The data set is designed to be used in a machine-readable format. In cases where not all the data of the proposed set are required, it is recommended to use cluster filtering mechanisms to reduce the amount of data requested: 1.Procedures per point are required (with selected geographical coordinates in examples 56.089 and 21.086): [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20WHERE%20%22Lat%22%20=%2056.089%20AND%20%22Lon%22%20=%2021.086) 2.It is necessary to have forecasts for the landfill in rectangular square format (for example, Jurmala area is selected from 56.925 to 57.008 and 23.524 to 23.935) [Example of selection]( https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20WHERE%20%22Lat%22%20BETWEEN%2056.925%20AND%2057.008%20AND%20%22Lon%22%20BETWEEN%2023.524%20AND%2023.935) 3.Only temperature values and time are required (example selected area) [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20%22Datetime%22,%20%22Value%22%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20WHERE%20%22Lat%22%20BETWEEN%2056.925%20AND%2057.008%20AND%20%22Lon%22%20BETWEEN%2023.524%20AND%2023.935%20AND%20%22Param%22%20=%20%27t%27) 4.The daily average temperature value of the selected area is required (for the whole forecasting period) [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT AVG(‘Value’) FROM ‘7af98218-6266-4459-a79d-a7dfe29277e0’ WHERE ‘Param’ = ‘t’ AND ‘Lat’ BETWEEN 56.89 AND 60.00 AND ‘Lon’ BETWEEN 23.86 AND 25.40 GROUP BY DATE(‘datetime’) 5.The data is required for the point closest to the coordinates you have chosen (does not take into account the difference between 1 latitude and 1 longitude) [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20ORDER%20BY%20ABS(ABS(%22Lat%22 %20-%2050)%20 %2B%20ABS(%22Lon%22 %20-%2025)) 6.Data is required for the third hour from the start of the forecast [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20AS%20a%20WHERE%20a.%22Datetime%22%20=%20((SELECT%20MIN(b.%22Datetime%22)%20FROM%20 %227af98218-6266-4459-a7dfe29277e0 %22 %20AS%20b)%20 %2B%20INTERVAL%20 %273 %20HOUR%27) 7.Data is required for one hour 3 hours later than the present time [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20WHERE%20%22Datetime%22%20%3E=%20NOW%20%2B%20INTERVAL%20%273%20HOUR%27%20ORDER%20BY%20%22Datetime%22) 8.Prognosis data for a time later than indicated [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20WHERE%20%22Datetime%22%20%3E=%20%272023-06-09%2010:00:00%27) 9.Prognosis data in a selected area for a specific period of time [Example of selection](https://data.gov.lv/dati/api/3/action/datastore_search_sql?sql=SELECT%20*%20FROM%20%227af98218-6266-4459-a79d-a7dfe29277e0%22%20WHERE%20%22Datetime%22%20BETWEEN%20%272023-09-12%2010:00:00%27%20AND%20%272023-09-14%2011:00:00%27)

Resources

Name Format Description Link
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/878eba46-4cc3-47b6-abe1-0c8093ab1d46/download/t.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/c288e2eb-6f8e-4ac6-aea2-bafa04302459/download/tpp.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/e565cf8d-54c7-4545-9ee2-e5adab4c7da5/download/tstm.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/bdade3aa-095b-496d-8461-d294fd82545f/download/9_day_forecast_parameters.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/0e64d829-aba9-49eb-9ad0-3725d3b388f7/download/aptmp.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/3a1a8646-f020-4054-9c03-001fc9a4062c/download/rh.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/062da18a-7b76-4283-ab5f-39ea9a91c265/download/fog.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/a1092334-a82d-4eaa-aa94-e48808188c8d/download/sp.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/dfac626d-5b90-4191-9a9d-9ffed21d9545/download/ws.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/9f229c4d-efa0-4c5f-813f-4f73e3919437/download/2tpl0.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/0748c6a4-4b80-499a-b8c6-c0a22a21d72c/download/wdir.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/e7bbb285-58da-49a8-b1ad-1f1da1dcbf94/download/pform.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/26130597-5c83-4e9c-a75a-ef448ea1e9fe/download/tp.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/9dff8401-bf89-4831-b27a-f36d7d0a110a/download/wgust.csv
8 https://data.gov.lv/dati/dataset/76c7e3fe-2a07-4164-a391-9bca8e039992/resource/26531afa-9ff9-45fe-8665-4c7e13455ed3/download/tcc.csv

Tags

  • augstvērtīgā-datu-kopa
  • meteoroloģiskie-dati

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