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Hudson River Environmental Conditions Observing System

HRECOS sensors at Piermont Pier
This meteorological station at
Norrie Point Environmental Center
logs temperature, humidity, pressure,
wind speed, precipitation and solar
radiation at 15 minute intervals

The Hudson River Environmental Conditions Observing System (HRECOS) is a network of near-real-time water quality and weather monitoring stations in the Hudson River Watershed. The stations are geographically distributed from Utica on the upper Mohawk River to the Hudson, down to the New York/New Jersey harbor. Stations record water quality and weather conditions every 15 minutes and transmit data in near real-time to the HRECOS website. HRECOS had a diverse user base consisting of researchers, resource managers, navigators, educators, and the general public.

You can use the links leaving DEC's website on the right side of the page to visit the official HRECOS website for:

  • Current River Conditions - Users can download data and create graphs of near real-time water and weather conditions.
  • HRECOS Mobile Station - The famous Sloop Clearwater is outfitted with the HRECOS monitoring equipment for tracking conditions in near real-time as it sails the Hudson.
  • The HRECOS Classroom - Interdisciplinary lesson plans utilizing HRECOS data, creatd by collaborating educators.
  • HRECOS Stories - Short descriptions of river phenomena learned from HRECOS data, written for the general public

HRECOS is operated by a consortium of partners from government and the research community:

  • New York State Department of Environmental Conservation
    • Hudson River Estuary Program
    • Mohawk River Basn Program
    • Hudson River National Estuarine Research Reserve
  • Hudson River Foundation
  • U.S. Geological Survey
  • Cary Institute of Ecosystem Studies
  • Stevens Institute of Technology
  • Lamont-Doherty Earth Observatory at Columbia University
  • Hudson River Park Trust
  • Passaic Valley Sewerage Commission of New Jersey
  • New York - New Jersey Harbor and Estuary Program

  • Links Leaving DEC's Website
  • PDF Help
  • For help with PDFs on this page, please call 845-256-3016.
  • Contact for this Page
  • The Hudson River Estuary Program
    NYSDEC Region 3
    21 S Putt Corners Rd
    New Paltz, NY 12561
    fax: (845) 255-3649
    845-256-3016
    Send us an email
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  • Page applies to Hudson River region