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NOAA STAR SOCD Enterprise OceanWatch Monitor (OM)
The OceanWatch Monitor
(OM) provides a first look at the performances of products ingested in the OceanWatch systems. These remotely sensed products include: Ocean Color (OC), Sea Surface Height (SSH), Sea Surface Temperature (SST), Sea Surface Salinity (SSS) and Sea Surface Wind (SSW).
Sea Surface Temperature
Using satellites to observe the temperature of seawater near the surface of the ocean is probably the most mature application of ocean remote sensing. Observations are made with IR, which cannot "see" through clouds and with passive microwave which is not affected by clouds but has other trade-offs. SST sensors are aboard both polar-orbiting satellites and geostationary satellites.
Latest SST (click on image to enlarge). .
Sea Surface Temperature, Night, Global Oceans
Near-real time monitoring of satellite SSTs in last 60 days. .
Radiation from the ocean surface of light in the visible wavelengths gives information about the color of the ocean. This "ocean color" (radiances) can be used to estimate chlorophyll concentration (the pigment in plants and phytoplankton responsible for photosynthesis and the dominant source of color in the open ocean) or the coefficients of light attenuation through the water column and other parameters (generally related to biological processes). In coastal areas, other biological compounds and minerals add complexity to interpretation. Clouds will block remotely sensed OC.
Latest OC (click on image to enlarge). .
Ocean Color Chlorophyll-a, Day, Science Quality, Global Oceans
Near-real time monitoring of satellite OC for recent 90 days. .
Sea Surface Height (Sea Level Anomaly)
Satellite altimeters use active radar to observe the surface height of the ocean which is not smooth or flat. Fluid hills and valleys deviate from a reference height (i.e., a mean sea surface). These vertical gradients are of interest for sea level rise, storm predictions, ocean currents, ecosystem ecology and other applications.
Latest SSH (click on image to enlarge). .
Sea Level Anomaly (SLA) wrt. long-term mean surface, Global Oceans
Near-real time monitoring of satellite SSH in last 90 days. .
Sea Surface Salinity
The salinity of seawater at the ocean surface can be remotely sensed using microwave frequencies. Currently, this technique is valid for open ocean measurements, while recognizing decreased sensitivity for colder water. Measurements within approximately 50 km of land are biased by land contamination and less accurate. Salinity is a defining parameter for ocean dynamics and can also serve as a proxy for certain biogeochemical processes.
Latest SSS (click on image to enlarge). .
Sea Surface Salinity (SSS), Global Oceans
Near-real time monitoring of satellite SSS in last 50 days. .
Sea Surface Wind (Ocean Surface Vector Wind)
Winds, both magnitude and direction, over the ocean drive other physical and chemical processes and therefore are used to model dynamic earth/ocean/atmosphere coupled systems ocean and are used for marine weather forecasting. Different remote sensing techniques may be used for gathering information on ocean surface winds including active radar and passive microwave.
Latest SSW (click on image to enlarge). .
Sea Surface Wind, Metop-A/B Ascending node, Global Oceans
Near-real time monitoring of satellite SSWs in last 90 days. .