Tag: forecast

The Science of Where Seagrasses Grow: ArcGIS and Machine Learning

Global prediction for seagrass occurrence. Click for interactive map.

From suggesting how many steps we should walk in a day, to predicting the future price of our home, machine learning (ML) is becoming an integral part of our lives. ML is a new approach to understanding our universe based … Continue reading

Posted in Analysis & Geoprocessing, App Developers, Apps, ArcGIS Earth, ArcGIS Enterprise, ArcGIS Online, ArcGIS Pro, Developer, Geodata, Hydro, Imagery, Living Atlas, Location Analytics, Mapping, National Government, Oceans & Maritime, Open Data, Portal for ArcGIS, Python, Sciences, Services, Spatial Statistics, State Government, Water Utilities | Tagged , , , , , , | 3 Comments

Dartmouth Flood Observatory now in the Live Stream Gauge Map

flood

In countries like the United States and Germany, federal agencies keep careful watch on the nation’s rivers, and disseminate their observations to the public. But in developing nations, many of the world’s major rivers remain un-gauged, despite the millions of … Continue reading

Posted in ArcGIS Online, Community Maps, Hydro, Local Government, National Government, Open Data, Public Safety, Sciences, State Government | Tagged , , , , , , , | Leave a comment

Esri Visualizes NOAA’s National Water Model

National Water Model

For the first time ever, you can visualize NOAA’s stream-flow forecasts throughout the continental U.S. in ArcGIS Online, ArcGIS for Desktop or freely via the REST endpoint. By accessing the National Water Model map services, hosted on Esri’s livefeeds2.arcgis.com server, … Continue reading

Posted in Analysis & Geoprocessing, ArcGIS Enterprise, ArcGIS Online, ArcMap, Cartographic Design, Hydro, Local Government, Mapping, National Government, Open Data, Sciences, State Government, Water Utilities, Web | Tagged , , , , , , , , , , , | Leave a comment

The esri High Water Map

The esri High Water Map is a public information viewer that reports current water levels and flood forecasts for more than 4000 gauges on streams and rivers across the United States.

With only a few seconds’ look at the high water map, you can see what parts of the USA are experiencing flooding right now.  In addition, you can see places that are forecast in the short term to undergo catastrophic flooding.  Gauges forecast to go
into major flood stage appear as subtle but attention-demanding
animations on the map.

View of esri High Water Map

Screenshot of the esri High Water Map

Click on any gauge to find out the current water level expressed by the gauge, plus an archived water level for the past week, and the forecasted water level for the next several days from the National Weather Service.  Clicking on a gauge makes these facts appear in a graph that on the left side of the map.

The High Water Map is a multiscale experience, so zooming in allows the map reader to see all available gauges, including the ones that pose no current danger to life or property. Gauges in normal condition are left off the smallest scale maps, because this is not a map of gauges per se.  This map is about high water. The subject of the map is current flooding and uses gauges to tell the story.

If you would like a brief guided tour that will get you started
using this map, Caitlin Scopel of the esri Mapping Center Team prepared
this five minute introductory video which will show you how to get started using the High Water Map and how to get the most out of this resource.

In case you are wondering where the gauge went that you know exists but isn’t on our map, you should know that our viewer is set up at this time to only parse xml feeds from the National Weather Service and NOAA.  This is largely because it is the most well-represented gauge network in the United States.  It is the one with the best coverage nationwide, but it is by no means the only system of gauges in the United States or the world.  In the United States and many countries around the world, there is no single common live gauge reporting system. So to demonstrate the map we chose a reliable, authoritative gauge system which covers most of the major river systems in the United States.

The High Water Map has the potential, however, to be adapted to read gauges from other agencies around the world with a few adaptations.

At this point in time there is promise there will be in the future a common worldwide system of gauge reporting.  A standard based upon WaterML holds promise for the creation of a global, live gauge data stream using a common publishing format.  Once this standard is agreed upon and implemented, the public stands to greatly benefit.  With a common standard and structure, all mapping technologies may combine, read and show live services.  A common standard and structure lets every gauge be in every map now, in everything from simple products to sophisticated forecasting and analysis.

Special thanks to Michael Dangermond for providing this post. Questions for Michael: mdangermond@esri.com

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