Dataset Edition

Présentation générale
Nom du jeu de donnéesdacciwa_kumasi_raingauges
Créé le2018-07-15
Projet(s)DACCIWA > WP6 - Precipitative Processes
Date de début (yyyy-mm-dd)2015-06-01Date de fin (yyyy-mm-dd)2017-12-31

Accès aux données Dataset as provided by the Principal Investigator


Description du jeu de données
RésuméThis dataset provides rainfall measurements from the Kumasi rain gauge network, which is compiled from 17 stations for the period 2015-06-01 to 2017-12-31. Two types of data are provided:

1) Quality-controlled, daily rainfall values (1d_cleaned), which is recommended for usage. We note that daily rainfall was aggregated from 09 UTC to 09 UTC the next day, according to the national Ghanaian standards. Format: txt

2) Raw, minutely rainfall in the way they are produced by the data logger of the rain gauge system (1m_raw, no quality control). This subset contains also days, which were dismissed in the quality control process. Furthermore, data availability partly extends into the year 2018. Format: csv. The content of the files are arranged in the following: year, month, day, hour, minute, second, number of counted drops. The nomenclature of the files is: YYMMDDHHMMSS.csv. Under normal circumstances, a new file is generated at 00 UTC. The filename would be e.g. 160101000000.csv. Power outages and subsequent rebooting of the rain gauge lead to timestamps that deviate from the standard. IMPORTANT: The last column of each file contains contain the number of drops counted by the system. To convert it to [mm], please multiply by 0.01.

3) Quality-controlled, minutely rainfall. This is not included yet since quality control has yet to be performed. An update will follow once this dataset is ready.

The metadata contain data availability charts for 1) and 2) in the period mentioned above. Additionaly, a station map and the coordinates of the stations is provided.
Strategie d'observationThe rain collector forms drops at the end of the orifice, which are counted by an optical sensor. One drop is equivalent to 0.01 mm. Again, if the raw dataset is used, please multiply the the values in the last column by 0.01 to obtain [mm].
Attached document1531658397-dacciwa_rg_metadata.tar
Description de l'instrument
Type d'instrumentIn Situ/Laboratory Instruments > Gauges > RAIN GAUGES
Information géographique
Site 1
Type de plateformeIn Situ Land-based Platforms > GROUND-BASED OBSERVATIONS
Instrument environment17 rain gauges are distributed within a radius of around 70 km around the city of Kumasi in the Ashanti region of Ghana. We refer to the station map in the metadata.
Paramètre mesuré
Nom du paramètrePrecipitation Amount
Mot-clé du paramètreAtmosphere > Precipitation > Precipitation Amount
Unitémillimeter - mm
Méthodologie d'acquisition et qualité1) The quality-controlled daily dataset contain 09-09 UTC rainfall amounts in mm. 2) The raw minutely dataset contains the number of drops counted in the past minute. Multiply by 0.01 to obtain [mm] The quality control was performed using collocated GMET rainfall information and estimates from GPM IMERG (see deliverable D6.3)
Date de début (yyyy-mm-dd)2015-06-01Date de fin (yyyy-mm-dd)2017-12-31
Précision du capteur / Incertitude0.01 mm
Information sur l'utilisation des données
Conditions d'utilisation des donnéesThe research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 603502.
Charte d'accès aux donnéesCreative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License
Base de donnéesDacciwa database
Format des fichiers de donnéescsv file (comma separated values)