DGA Station
Observations for the current month:


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Observed discharge

Information on the discharges observed in Chilean rivers by the Chilean Water Authority (DGA) are reported here.

In menu>analysis you can select the variable: Percentage, Measured or Anomaly. In menu>region you can select a region.

Measured: This map shows the discharge, as measured in the principal Chilean rivers. The measurements are in m3/s. The discharge data are available on a monthly basis.

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

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

Tabel 1: Interpretation of the Standardized Anomalies

Legend of the Standardized Anomalies

Discharge stations are those reported by the Chilean Water Authority (DGA).

Important to mention is that these are real-time observations and thus not revised yet on errors like outliers.

In this maproom only a selection of the automated hydrometric stations of the DGA are displayed. The entire database of discharge and water level of the DGA (468 stations) can be accessed here.

Additionally to the discharge measurements, the DGA forecasts annually the glacier melt and discharge for the months of irrigated agricultural production (September until March). The forecasts can here be downloaded.

How is the percentage calculated?

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

Dataset Documentation

Data
Observed Discharge 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.

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