Presentation is loading. Please wait.

Presentation is loading. Please wait.

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

Similar presentations


Presentation on theme: "Science Enabled by New Hyperspectral Observations Related to Physiology and Functional Types (HyspIRI) Dar Roberts, Frank Muller-Karger Reiterate Break."— Presentation transcript:

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_CC&E_PPFT_rog_080428.ppt An Introduction to HyspIRI-TIR: Simon Hook –cc&e 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


Download ppt "Science Enabled by New Hyperspectral Observations Related to Physiology and Functional Types (HyspIRI) Dar Roberts, Frank Muller-Karger Reiterate Break."

Similar presentations


Ads by Google