The newly designed website contains existing and updated content, improved navigation and usability to find info faster on any device.
The newly designed website contains existing and updated content, improved navigation and usability to find info faster on any device.
Discover the Otago Regional Council Environmental Data Portal (EDP) offering comprehensive water data, featuring rainfall summaries and real-time flow information across diverse locations in Otago.
Explore the Otago Regional Council Environmental Data Portal (EDP) for the latest rainfall info and more. Access over 80 years of data in an easy-to-navigate, map-based format.
Explore the Otago Regional Council Environmental Data Portal for the latest flow summary info and more! Access over 80 years of quality-approved data in an easy-to-navigate, map-based format
Get the latest environmental data, such as water levels, rainfall, flow, temperature and much more with the ORC Environmental Data Portal. Type in the location, and you will be able to view available information.
Find a list of sites in Otago where water flow is monitored.
Water level refers to the height in metres of the river or lake above mean sea level. Note that water level for sites in the Taieri catchment is height above mean sea level plus 100 metres (for example, a water level of 100.5 metres is actually 0.5 metres above mean sea level).
Flow refers to the volume of water in the river and is given in cumecs. One cumec equals one cubic metre of water flowing past a point in one second. One cubic metre of water equals one thousand litres and weighs one tonne.
Rainfall refers to the depth of rain in millimetres measured during a specific time period. The graphs for each site show hourly rainfall totals for the previous 7 days, and daily rainfall totals for the last 180 days. A total for the previous 24 hour period is also given.
The Site Information shows detailed information about each site. Rainfall sites show the start of record, mean annual rainfall and the maximum recorded rainfall in 24 hours. Flow sites show the start of record, catchment area, 3 highest and 3 lowest flows recorded, Mean Annual Low Flow (MALF), and lowest 7 Day Low Flow. The 7 day low flow in any year is determined by calculating the average flow over 7 consecutive days for every 7 consecutive day period in the year and choosing the lowest. When this is done for every year of record, the MALF can be determined by adding the lowest 7 day low flows for every year of record and dividing by the number of years in the record.
The Water Temperature graph shows the last 180 days water temperature in degrees Celsius. Not all sites have water temperature available.
Two graphs of water level, flow and rainfall are shown for each site. The first graph displays the last 7 days of data and the second graph displays the last 180 days of data. Graphs have an extra option to overlay flood warning and minimum levels. These are activated by selecting the 'Show in Graph' box, and then selecting 'Update Graphs'.