SUBGROUP Update to MODIS land discipline team Jeff Morisette (301) 614-6676 24 March 2005 CEOS LAND PRODUCT GEOSS.

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Presentation transcript:

SUBGROUP Update to MODIS land discipline team Jeff Morisette (301) March 2005 CEOS LAND PRODUCT GEOSS

LPV report to MODIS land team, 24 March LPV outline Review of Working Group on Cal/Val plenary and field campaign Review of LPV workshops –Past –Planned Ongoing LPV activities –CEOS Core Sites (with WGISS) –Special Issue – in progress –Web site update LPV concluding remarks

LPV report to MODIS land team, 24 March LPV outline

LPV report to MODIS land team, 24 March Review of WGCV meeting A lot of discussion on the interaction between CEOS working groups and GEOSS First joint Working Group on Cal/Val Working Group on Information Systems & Services First attempt at field exercise in conjunction with a WGCV plenary meeting

LPV report to MODIS land team, 24 March CEOS/WGCV/LPV Organizational Structure CEOS Committee on Earth Observing Satellites (NASA rep = Ron Birk) WGCV Working Group on Cal/Val (NASA rep = Garik Gutman Current Chair Steve Ungar/Goddard) LPV Land Product Validation Subgroup (NASA rep & current chair = Jeff Morisette Past chair = Jeff Privette)

LPV report to MODIS land team, 24 March Goals for field campaign Add a South American agricultural site to the LAI- intercomparison activity Test the three different LAI measuring instruments’ sensitivity to sun light conditions Develop a MODIS land cover reference map of detailed agricultural information Related to the field campaign – build on the “Global Observation of Forest Cover/Land Dynamic” (GOFC/GOLD) South American Network.

LPV report to MODIS land team, 24 March Data Collection Field Spectrum Sun photometer AccuPAR Digital Hemispherical photos Field Survey of entire Manfredi site

LPV report to MODIS land team, 24 March Manfredi INTA Site

LPV report to MODIS land team, 24 March EO1-ALI Image WRS2 229/ Jan 2005, 695 (RGB)

LPV report to MODIS land team, 24 March Sky condition experiment Corn – diffuse lighting

LPV report to MODIS land team, 24 March Sky condition experiment Corn – full sun

LPV report to MODIS land team, 24 March Manfredi Fieldwork, March 2005 Sunlit Measurements / ESU ESU Only Land Cover GCP (8)(13)(34)

LPV report to MODIS land team, 24 March Lessons learned from field exercise It is feasible to conduct a (somewhat limited) field campaign in conjunction with a WGCV plenary meeting More lead-in time –for instruments to be gathered and shipping documents to be gathered –buy-in from CEOS members to acquire and share “tasked” satellite data Focus on an area/topic of “user concern” where field work can help the user with the data or improve the product for a particular need –Perhaps within one of the GEOSS focus areas May need to add an “outreach” component to bring together CEOS producers and local users to help define the goals of the campaign and follow-up with the data from the campaign Might consider conducting field campaigns every-other meeting, with a “results” workshops staggered in-between All CEOS members need to step-up with acquisition of any high- resolution satellite data that need to be tasked –Main constraint on LAI validation will be acquisition date of cloud free high-res data (hoping to get EO-1 and/or ASTER)

LPV report to MODIS land team, 24 March LPV outline

LPV report to MODIS land team, 24 March Topical workshops Results workshop for LAI-intercomparison 16 August 2004, University of Montana, Missoula, USA Established an agreement for data sharing and a paper submitted to the special issue Ground-based Accuracy Assessments for Fire Occurrence and Deforestation Events 26 July 2004, Brasilia Part of the Large scale study of the Biosphere and atmosphere in Amazonia (LBA) GOFC-GOLD/FAO Workshop on Harmonization of Global Land Cover Products July 2004, FAO in Rome A manuscript on this issue has been submitted to the special issue Upcoming… Albedo/BRDF Intercomparison April 2005 Austria, Vienna (in conjunction with EGU) Continuous Fields validation late summer 2005, location to be determined… Validation of multi-sensor time series 2006, location to be determined… perhaps in conjunction with other disciplines perhaps associated with a “sustainable agricultural and desertification” mtg.

LPV report to MODIS land team, 24 March INTEGRATION WITH GLOBAL OBSERVING SYSTEM FOR CLIMATE IMPLEMENTATION PLAN Essential Climate Variable for land: MODLAND validation will watch if & how these are adopted into NASA priority climate data record LPV will watch if & how these are adopted by GEOSS WMO, Implementation Plan for the Global Observing System for Climate in Support of the UNFCCC, October, GCOS - 92, WMO/TD No. 1219, United Nations Environment Programme International Council. River Discharge Lake Level/Area Ground Water Water Use Snow Cover Glaciers and Ice Caps Permafrost & seasonally frozen ground Albedo Land Cover fAPAR and LAI Biomass Fire Disturbance

LPV report to MODIS land team, 24 March LPV outline

LPV report to MODIS land team, 24 March CEOS Core Sites ETM+MODISASTERSRTMNEDLidarAVHRR SPOT VEGMERISCHRIS Barton Bendish XX OOX Boreas North XXX OOX Harvard XX XX OOX Mongu XXX OOX Puget Sound X XXLinkOO Railroad Valley X XXX OO Southwest Amazon OO Uardry XX OOX X = data at USGS/EROS O = “distributed data”

LPV report to MODIS land team, 24 March CEOS Core Sites

LPV report to MODIS land team, 24 March LPV “Special Issue” – ongoing Special Issue: describing the state of the art research on both protocol and results for validation and accuracy assessment of global land products (Liang, Baret and Morisette, eds.) MODIS related = VI(2), LAI(8), Fapar(2), NPP/GPP(2), LST(1), LC(2), fire(1) Others = LC(3), BRDF(2) Several members from the user community have agreed to write a note for each section on the implication for the uncertainty/validation of the products (land cover, fire/burn), but still need an article on biosphysical parameters.

LPV report to MODIS land team, 24 March MODIS example: “Accuracy Statements” (1/3) Product “pick-list”

LPV report to MODIS land team, 24 March Accuracy Statement for each product MODIS example: “Accuracy Statements” (2/3)

LPV report to MODIS land team, 24 March Support material for each Accuracy Statement - updated by product PI and validation community MODIS example: “Accuracy Statements” (3/3)

LPV report to MODIS land team, 24 March Matches WGCV page layout and graphic Quick links to: Listserves Announments WGCV CEOS and CEOS calendar Pull-down menu for main topical areas: Land cover Biophysical Fire/Burn Surface Radiation Each pull-down lists: Background Producers * Meetings Case studies Intercomparisons * input needed web curator: Jaime Nickeson

LPV report to MODIS land team, 24 March LPV outline

LPV report to MODIS land team, 24 March LPV concluding remarks Defining user accuracy requirements and getting users to respect product accuracy remains a challenge – use validation site where site contacts are using the MOD res. data There are no established standards on how to relay product accuracy to users – “confidence layers” are likely to be the best approach Perhaps WGCV has not been consistent among subgroups (“land”/ “atmosphere” or “biophysical”/“atmospheric chemistry”) WGCV may need to integrate better with the Ocean Color community Multi-sensor products offer great potential. The related algorithms will require an understanding of the accuracy of each sensor’s input. A demonstration of this might help justify proper cal/val to the GEOSS principals.