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(Complete Item Description)
- Abstract:
-
Identifying, documenting, classifying, and accurately mapping the diversity of forests found around the world is an active, ongoing process. A holistic system of global ecological zones related to simple, well-known climate characteristics and vegetation types is now used to classify the worldâs forests. In this activity, students will examine this system to see how temperature and moisture determine the type of forest in a given locale.
- Subject:
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Science and Technology
- Grade Level:
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Secondary
- SubTopics:
-
Plants and Forests,
Climate Change
- Collection:
-
Project Learning Tree
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Read the Fine Print
(Complete Item Description)
- Abstract:
-
Traditional satellite-based mapping of vegetation vigor and amount is based on the way vegetation interacts with red and infrared light. Occasionally, however, those two signals are not enough. MODIS measures light reflected from Earth at a variety of wavelengths, and the Arizona researchers incorporate the additional information into their Enhanced Vegetation Index (EVI). The EVI has increased sensitivity within very dense vegetation, and it has built-in corrections for several factors that can interfere with the satellite-based vegetation mapping, like smoke and background noise caused by light reflecting off soil. The bi-weekly and monthly vegetation index maps have wide usability by biologists, natural resources managers, and climate modelers. They can track naturally occurring fluctuations in vegetation, such as seasonal changes, as well as those that result from land use change, such as deforestation. The EVI can also monitor changes in vegetation resulting from climate change, such as expansion of deserts or extension of growing seasons.
- Subject:
-
Science and Technology
- Grade Level:
-
Secondary,
Post-secondary
- SubTopics:
-
Industrial and Agricultural Impacts
- Collection:
-
NASA GSFC Scientific Visualization Studio
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(Complete Item Description)
- Abstract:
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This animation starts with a false-color map of tree heights north of San Jose, Costa Rica, and changes to a close-up 3D cut-away of a section of the forest with simulated green canopy. Data from LVIS observations taken in March, 1998.
- Subject:
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Science and Technology
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
-
NASA GSFC Scientific Visualization Studio
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No Strings Attached
(Complete Item Description)
- Abstract:
-
This resource contains various chapters and factsheets on land degradation in South Africa. A vast amount of data which was generated during the national review of land degradation in South Africa is also available in both GIS and Excel format.
- Subject:
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Science and Technology
- Grade Level:
-
Post-secondary
- SubTopics:
-
Soil and Land
- Collection:
-
University of Cape Town
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Remix and Share
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