Chlorophyll in the water changes the way it reflects and absorbs sunlight, allowing scientists to map the amount and location of phytoplankton. These measurements give scientists valuable insights into the health of the ocean environment, and help …

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2022年7月27日 · This dataset has Level 3, Standard Mapped Image, 4km, chlorophyll-a concentration data from NASA's Aqua Spacecraft. Measurements are gathered by the Moderate Resolution Imaging Spectroradiometer (MODIS) carried aboard the spacecraft.

Scientists use satellites to measure how much phytoplankton are growing in the ocean by observing the color of the light reflected from the shallow depths of the water. Phytoplankton contain a photosynthetic pigment called chlorophyll that lends them a greenish color.

2016年2月4日 · In this imagery, areas of the ocean with lower amounts of surface chlorophyll are colored blue, areas with higher concentrations are colored green to yellow. The large patches of gray are areas where the satellite cannot measure the ocean surface due to cloud cover.

Exploring Historic Ocean Chlorophyll Concentrations for Different Regions with Graphs. These six graphs show Ocean Chlorophyll Concentrations from 1998 - 2018 in a variety of locations: East Bering Sea, Gulf of Alaska, California Coast, Southeastern US/Gulf of Mexico, Northeastern US and the Scotian Shelf, and the Hawaiian Islands.

2019年11月21日 · This dataset provides global daily estimates of ocean surface chlorophyll-a concentration and remote sensing reflectance derived from multiple satellite sensors. These two products are part of the broader discipline of ocean colour remote sensing, which analyses ocean surface radiances measured from space to derive information about the optical ...

Provides free, open, regular and systematic reference information on the blue (physical), white (sea ice), and green (biogeochemical) ocean state, variability and dynamics across the global ocean and European regional seas.

Phytoplankton populations are influenced by climatic factors such as sea surface temperatures and winds. The map shows average chlorophyll concentrations for the period 1998–2019. The graphs below the map show trends in chlorophyll concentrations (percent change relative to the 1998–2020 average) for different regions.

In places where ocean currents cause upwelling, sea surface temperatures are often cooler than nearby waters, and chlorophyll concentrations are higher. This connection is evident in multiple places. A band of cool, plant-rich waters circles the globe at the Equator, with the strongest signal in the Atlantic Ocean and the open waters of the ...