Science Enabled by New Hyperspectral Observations Related to Physiology and Functional Types (HyspIRI) Dar Roberts, Frank Muller-Karger - PowerPoint PPT Presentation

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Science Enabled by New Hyperspectral Observations Related to Physiology and Functional Types (HyspIRI) Dar Roberts, Frank Muller-Karger

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Are regions becoming more fire prone, are there regional feedbacks between climate and fire? ... It is critical to remember this is a terrestrial and coastal mission ... – PowerPoint PPT presentation

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Title: Science Enabled by New Hyperspectral Observations Related to Physiology and Functional Types (HyspIRI) Dar Roberts, Frank Muller-Karger


1
Science Enabled by New Hyperspectral Observations
Related to Physiology and Functional Types
(HyspIRI) Dar Roberts, Frank Muller-Karger
  • Reiterate Break Out Questions
  • An Introduction to HyspIRI Robert Green
  • pres_CCE_PPFT_rog_080428.ppt
  • An Introduction to HyspIRI-TIR Simon Hook
  • cce hyspiri 2008.ppt
  • Detailed Discussion of the three main questions
  • What are the priority science issues (3)?
  • What do we need to do to scientifically to use
    these data (1)?
  • Are there any major issues and if so, what are
    they(2)?
  • Wrap up

2
Overview
  • What does HyspIRI contribute?
  • High spatial and spectral resolution at global
    scales
  • 60 m covering the entire spectrum from 400-2500
    nm
  • 1 km oceans
  • Fine spectral and spatial resolution targeted at
    terrestrial and coastal environments
  • 19 day repeat cycle, providing the first view of
    high spectral/temporal resolution for many
    ecosystems

3
Science
  • Land and ocean/coastal ocean communities find
    significant parallels that can be addressed by
    HyspIRI
  • Mission has potential to truly address many key
    scientific, and socially-relevant research
    problems spanning ecosystems from the watershed
    to the coastal ocean

4
Priority Science Questions
  • Biogeochemical Cycles
  • How do changes in the Earth's physical, chemical,
    and biotic environment affect the productivity,
    carbon storage and biogeochemical cycles of
    ecosystems?
  • Provides improved measures of ecosystem
    production through direct sampling of important
    plant pigments and biochemicals
  • How do changes in biogeochemical processes feed
    back to other components of the Earth system?
  • Requires a significant modeling element, although
    monitoring is important
  • Many parameters address critical needs in
    modeling, such as improved measures of
    photosynthetic capacity

5
Priority Science Questions
  • Ecosystem Response to Disturbance
  • How do human-caused and natural disturbances
    affect the distribution, biodiversity and
    functioning of ecosystems?
  • Numerous types of disturbance are important, many
    terrestrial disturbance mechanisms have aquatic
    analogs
  • Invasive species, pollution, pathogens (harmful
    algal blooms)
  • Hurricanes, floods (both impacts on land, coastal
    environments)
  • What is the impact of global fire on the
    terrestrial biosphere and atmosphere, and how is
    this impact changing over time?
  • Identified as key priority in the TIR, includes
  • Are fire regimes changing in response to land use
    and climate?
  • Are regions becoming more fire prone, are there
    regional feedbacks between climate and fire?
  • What is the role of fire in global biogeochemical
    cycling?

6
Priority Science Questions
  • Ecosystems and Human Well-being
  • How do changes in ecosystem composition and
    function affect human health, resource use, and
    resource management?
  • Potential synergies between terrestrial and
    coastal ecology, studying the relationships
    between land-use, agriculture, runoff, algal
    blooms and water quality
  • How can we better characterize trends in local
    and regional water use and moisture availability
    as global supplies become more limited?
  • Identified as a key priority in TIR
  • Improved measures of evapotranspiration and water
    stress
  • Improved estimates of global irrigated lands and
    changes

7
What do we need to scientifically use these data?
  • Products need to be calibrated/validated
  • There is a need for further process studies
  • Large ecosystem scale field campaign(s) that
    cross the land-ocean boundary
  • Need to be supported by multiple sensors over the
    same location
  • Need other data sources (eddy flux, coastal
    bathymetry and elevation)
  • The community should begin to consider an RFP
    that outlines critical elements of such a
    campaign
  • Large watershed study
  • Should leverage off of existing sites from NOAA,
    NSF (LTER), USGS
  • A long term data acquisition plan is needed,
    especially to deal with clouds
  • Key data products (reflectance) need to be
    identified and common algorithms tested across
    ecosystems
  • Potential synergies with other systems, such as
    vertical height measures or other planned
    missions should be considered

8
Are there any major issues?
  • It was generally agreed that the current sensor
    configuration is good and technology mature
  • Data rates are large, but not unfeasible
  • Nevertheless, a data system is needed
  • Needs a long term data acquisition plan
  • Plans for staged data processing, processing high
    values sites first
  • All efforts should be made to provide rapid data
    access
  • Broadcast capabilities would be of value
  • Initial launch should be coupled with field
    campaigns at Cal Val sites
  • Southern hemisphere sites should be considered in
    the case of delayed winter launches
  • International partners might be possible
  • 20 m pan band from Australia or Canada

9
Summary
  • Well attended, good discussion
  • Generally very positive response when can we
    get these data?
  • It is critical to remember this is a terrestrial
    and coastal mission
  • The need for supporting science in advance of a
    launch and during a mission is critical
  • Large field campaign in a large water shed
  • Identify priority sites with long legacies such
    as coastal LTERS, NOAA or USGS sites
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