Oceans & Coasts | NESDIS | National Environmental Satellite, Data, and Information Service
Official websites use .gov
.gov
website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
lock
) or
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Oceans & Coasts
Monitoring our Waters
The ocean and large inland lakes play an integral role in many of the Earth's systems, including climate and weather. There are five named ocean basins: Arctic, Atlantic, Indian, Pacific, and Southern, and there is over 95,000 miles of shoreline in the United States alone.
To monitor it all, NOAA satellites are gathering data that can, among other things, monitor gases, temperature, and the biological components of the oceans. Different satellites carry different instruments and measure different parameters. Two widely recognized parameters are sea surface temperatures and winds over ocean waters. Different branches of NESDIS work with the Ocean Service to conduct research using satellite and in-situ observations to infer various oceanic, coastal, climatic, and marine weather processes.
Satellite image of Cape Cod Bay, Massachusetts.
How to Monitor
HABs
Harmful algal blooms, or HABs, occur when colonies of algae — simple plants that live in the sea and freshwater — grow out of control.
What is a HAB?
HABs
Ocean Temperatures
Rising amounts of greenhouse gases are preventing heat from Earth’s surface from escaping into space. Most of the excess heat that doesn’t escape Earth’s atmosphere is passed back to the ocean.
Ocean Temperatures Matter!
Ocean Temperatures
Sea Level
Many estimates of sea-level rise are based on measurements from satellite radar altimeters onboard TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3.
Rising Sea Levels
Sea Level
ARGOS
ARGO's is a data collection and relay program that provides global coverage and platform location.
ARGOS Systems
ARGOS
Coral Reefs
NOAA’s Coral Reef Watch program uses satellites to monitor ocean temperatures, which, if too high, can lead to coral bleaching. Corals have a symbiotic relationship with the algae that live inside their tissues.
Coral Reef Watch
Coral Reefs
More Articles on Oceans and Coasts
image
Feature Story
The Critical Role of LEO Observations in Alaska
NOAA’s three operational Joint Polar Satellite System (JPSS) satellites collectively pass over…
March 2, 2026
image
Feature Story
NOAA Satellites Assist Scientists Studying Mass Bleaching Event of Florida Corals
A NOAA-led study recently published in Science confirmed that a record marine heatwave in 2023…
December 3, 2025
image
Feature Story
From Space to Sea: NOAA Satellites Help Safeguard Alaska’s Fisheries
LEO satellites provide essential ocean color data that supports sustainable fisheries and protects…
July 31, 2025
View More
Oceans & Coasts
US