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ecosystem    音标拼音: ['ikos,ɪstəm]

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  • Global Ecosystem Dynamics Investigation Lidar | NASA Earthdata
    The Global Ecosystem Dynamics Investigation (GEDI) instrument is a full-waveform lidar installed on the International Space Station that produces detailed observations of the 3D structure of Earth’s surface GEDI's three lasers precisely measure forest canopy height, canopy vertical structure, and surface elevation By accurately measuring forests in 3D, GEDI data play an important role in
  • Millennium Ecosystem Assessment: MA Biodiversity - Earthdata
    The Millennium Ecosystem Assessment: MA Biodiversity provides data and information on amphibians, disease agents (extent and distribution of infectious and parasitic diseases), drylands (cattle, sheep and goats, and pasture), islands (fishing pressure, sewage pollution index and tourism), loss of natural land cover (biomes and realms), polar population, species distribution models, and
  • Anthropogenic Human Influenced Ecosystems - NASA Earthdata
    Our datasets useful to the study of human-influenced ecosystems include crop extent maps, urban air quality measurements, and land cover surveys These measurements and higher-order data products enable important studies into how humans shape Earth and how we can better care for ourselves and our home Get Human-Influenced Ecosystems Data
  • Terrestrial Ecosystems - NASA Earthdata
    NASA's terrestrial ecosystem data give researchers the ability explore the creature and plant communities living on land virtually anywhere on Earth
  • Global Ecosystem Dynamics Investigation | NASA Earthdata
    NASA's Global Ecosystem Dynamics Investigation (GEDI) project focuses on how deforestation has contributed to atmospheric CO2 concentrations, how much carbon forests will absorb in the future, and how habitat degradation will affect global variability of life
  • CENTURY: Modeling Ecosystem Responses to Climate Change . . . - Earthdata
    Description The CENTURY model, Version 4, is a general model of plant-soil nutrient cycling that is being used to simulate carbon and nutrient dynamics for different types of ecosystems including grasslands, agricultural lands, forests and savannas CENTURY is composed of a soil organic matter decomposition submodel, a water budget model, a grassland crop submodel, a forest production
  • Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station . . .
    The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) is aboard the International Space Station (ISS) and measures the temperature of plants to better understand how much water plants need and how they respond to stress ECOSTRESS addresses three overarching science questions: How is the terrestrial biosphere responding to changes in water availability? How do
  • PnET-BGC: Modeling Biogeochemical Processes in a Northern Hardwood . . .
    This archived model product contains the directions, executables, and procedures for running PnET-BGC to recreate the results of Gbondo-Tugbawa, S S , C T Driscoll , J D Aber and G E Likens 2001 The evaluation of an integrated biogeochemical model (PnET-BGC) at a northern hardwood forest ecosystem Water Resources Research 37:1057-1070 Gbondo-Tugbawa et al, 2001 Excerptfrom Abstract: An
  • ISLSCP II Ecosystem Rooting Depths - NASA Earthdata
    ISLSCP II Ecosystem Rooting DepthsThe parameters included in these data sets are estimates for the soil depths containing 50% and 95% of all roots, termed 50% and 95% rooting depths (D50 and D95, respectively) Together, these variables can be used to calculate estimates for vertical root distributions, using a logistic equation provided in this documentation The data represent mean ecosystem
  • Boreal Ecosystem-Atmosphere Study | NASA Earthdata
    The Boreal Ecosystem-Atmosphere Study (BOREAS) was a large-scale, international, interdisciplinary experiment in the boreal forests of central Canada Its focus was improving our understanding of the exchanges of radiative energy, sensible heat, water, CO2, and trace gases between the boreal forest and the lower atmosphere A primary objective of BOREAS was to collect the data needed to





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