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).

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

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