DGA Station
Observations for the current month:


image

Observed Precipitation DGA

Information on the precipitation observed at the automatic DGA stations is available here.

In menu>variable you can select the variable: measured and percentage. In menu>region you can select a region.

Observed: This map shows the precipitation, as measured in the different DGA stations. The measurements are in [mm/month]. Every point on the map indicates the localization of a meteorological station. The color scale, from light green to dark green, indicates the amount of rainfall; dark green corresponds with higher rainfall amounts.

Percentage: This map shows the precipitation as percentage of the precipitation normally expected in this month. The percentage indicates conditions of deficit to the normal situation.

Standardized Anomaly: This map shows the precipitation as standardized anomaly. The anomaly is the difference between the precipitation measured and the precipitation normally expected in this month. The anomaly indicates conditions of deficit or surplus of precipitation compared to a normal situation (Table 1).

Tabel 1: Interpretation of the Standardized Anomalies

Legend of the Standardized Anomalies

The datasets used for this maproom are obtained from meteorological stations provided by the Dirección General de Aguas of Chile (DGA).

Logo DGA

How is the percentage calculated?

The percentage is calculated by deviding the monthly precipitation measured in a station by the average precipitation (calculated using historical data of the specific station and month in consideration) and multiplying it with 100.

How is the anomaly calculated?

The anomaly is the monthly precipitation measured in a station minus the average precipitation (calculated using historical data of the specific station and month in consideration) devided by the standard deviation.

Dataset Documentation

Data
Observed Precipitation at DGA measuring stations
Data Source
DGA Water Authority, DGA

Helpdesk

Contact mwar_lac@unesco.org with any technical questions or problems with this Map Room.

Instructions