Recent PACE Data Maps
Chlorophyll Concentration | Aerosol Optical Properties | Cloud Fraction | Land Vegetation IndicesThe maps below are available from the Ocean Biology Distributed Active Archive Center.
PACE Chlorophyll is the near-surface concentration of the green pigment, chlorophyll a, at the ocean surface. Found in tiny photosynthetic organisms – phytoplankton – chlorophyll is a measure of ocean ecosystem health.
Colors in these standard products indicate the concentration of chlorophyll in our ocean averaged over one day. Click on the images (below) for a closer view. From there, you can click the left/right arrows to move between maps.


PACE aerosol optical depth (AOD) is a measure of how much airborne particles particles – like smoke, dust, pollution, and sea salt – block sunlight in the entire vertical column of the atmosphere. This product is reported at 550 nanometers, the middle of the visible spectrum..


PACE cloud fraction (CLOUD) is the proportion of a given sky or grid area covered by clouds, ranging from 0 (completely clear) to 1 (totally overcast).


PACE Land Vegetation Indices tell us about the “greenness” or photosynthetic activity of plants on land. Healthy plants – with abundant chlorophyll and cell structures – appear as green colors. Areas with sparse or unhealthy vegetation appear brown. Ice or snow-covered areas appear white.
Colors in these provisional products indicate the health and abundance of vegetation on land averaged over one day. Click on the images (below) for a closer view. From there, you can click the left/right arrows to move between maps.


















