ShahidT
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was surprised to learn that regions across the earth vary so much in terms of productivity of their plant life, i.e. how much carbon dioxide they absorb as opposed to release into the atmosphere. this is important for understanding long term constraints and opportunities for improved air quality and effects of climate change in different parts of the globe.
sidenote: I'm glad to see our Indonesian brothers and sisters are planning well for their children's futures with a healthy amount of carbon absorbing forestry being protected and nurtured.
Net Primary Productivity (1 month - Terra/MODIS) | NASA
What do the colors mean?
The colors on these maps indicate how fast carbon was taken in for every square meter of land for the time span indicated. Values range from -1.0 grams of carbon per square meter per day (tan) to 6.5 grams per square meter per day (dark green). A negative value means decomposition or respiration overpowered carbon absorption; more carbon was released to the atmosphere than the plants took in.
About this dataset
Basic
Because carbon dioxide gas helps to warm our world, scientists want to better understand where carbon dioxide comes from and where it goes. Plants play an important role in the movements of carbon dioxide throughout Earth's environment. Living plants both take in carbon dioxide from the air and put out carbon dioxide to the air. So scientists use satellites to measure the difference between how much carbon dioxide is taken in by plants compared to how much is put out by them. This difference is total amount of carbon dioxide taken in by plants, called net primary productivity. The maps here show plants' net primary productivity for the whole globe.
_
something related to perhaps better understand the reasons for distribution of the above dataset.
Vegetation Index [NDVI] (1 month - Terra/MODIS) | NASA
What do the colors mean?
Dark green areas show where there was a lot of green leaf growth; light greens show where there was some green leaf growth; and tan areas show little or no growth. Black means "no data."
Basic
Our lives depend upon plants and trees. They feed us and give us clothes. They absorb carbon dioxide and give off oxygen we need to breathe. Plants even provide many of our medicines and building materials. So when the plants and trees around us change, these changes can affect our health, our environment, and our economy. For these reasons, and more, scientists monitor plant life around the world. Today, scientists use NASA satellites to map the "greenness" of all Earth's lands. These vegetation index maps show where and how much green leaf vegetation was growing for the time period shown.
_
endnote: one can click through the links to see an interactive version of each on a time scale stretching back to turn of the century, if you'd like to see how they have changed.
sidenote: I'm glad to see our Indonesian brothers and sisters are planning well for their children's futures with a healthy amount of carbon absorbing forestry being protected and nurtured.
Net Primary Productivity (1 month - Terra/MODIS) | NASA
What do the colors mean?
The colors on these maps indicate how fast carbon was taken in for every square meter of land for the time span indicated. Values range from -1.0 grams of carbon per square meter per day (tan) to 6.5 grams per square meter per day (dark green). A negative value means decomposition or respiration overpowered carbon absorption; more carbon was released to the atmosphere than the plants took in.
About this dataset
Basic
Because carbon dioxide gas helps to warm our world, scientists want to better understand where carbon dioxide comes from and where it goes. Plants play an important role in the movements of carbon dioxide throughout Earth's environment. Living plants both take in carbon dioxide from the air and put out carbon dioxide to the air. So scientists use satellites to measure the difference between how much carbon dioxide is taken in by plants compared to how much is put out by them. This difference is total amount of carbon dioxide taken in by plants, called net primary productivity. The maps here show plants' net primary productivity for the whole globe.
_
something related to perhaps better understand the reasons for distribution of the above dataset.
Vegetation Index [NDVI] (1 month - Terra/MODIS) | NASA
What do the colors mean?
Dark green areas show where there was a lot of green leaf growth; light greens show where there was some green leaf growth; and tan areas show little or no growth. Black means "no data."
About this datasetBasic
Our lives depend upon plants and trees. They feed us and give us clothes. They absorb carbon dioxide and give off oxygen we need to breathe. Plants even provide many of our medicines and building materials. So when the plants and trees around us change, these changes can affect our health, our environment, and our economy. For these reasons, and more, scientists monitor plant life around the world. Today, scientists use NASA satellites to map the "greenness" of all Earth's lands. These vegetation index maps show where and how much green leaf vegetation was growing for the time period shown.
_
endnote: one can click through the links to see an interactive version of each on a time scale stretching back to turn of the century, if you'd like to see how they have changed.
