The Long-Term Mean Monthly Discharges and Annual Characteristics offer basic statistics of all stations being represented in the Global Runoff Database:
- annual means, lowest, and highest monthly discharges for individual years,
- long-term mean, lowest, and highest monthly discharges of time series with at least five years of observation each with at least ten monthly values,
- long-term inner-annual mean, lowest and highest monthly discharges of time series with at least five values of a specific month, and their standard deviations.
The monthly primary values are provided station by station as ASCII-text files, named with pvm-prefix and station numbers. For download, all files are grouped by WMO Regions. Please note, that statistics are only provided for timeseries of daily discharge values from years with less than ten months and months with less than ten days missing.
Build on reliable and scalable technology
FAQ
Frequently Asked Questions
Some basic informations about API Store ®.
Operation and development of APIs are currently fully funded by company Apitalks and its usage is for free.
Yes, you can.
All important information such as time of last update, license and other information are in response of each API call.
In case of major update that would not be compatible with previous version of API, we keep for 30 days both versions so you will have enough time to transfer to new version. We will inform you about the changes in advance by e-mail.