Réserve Faunique des Laurentides (Laurentides Wildlife Reserve
Transcription
Réserve Faunique des Laurentides (Laurentides Wildlife Reserve
marc.simard@jpl.nasa.gov Réserve Faunique des Laurentides (Laurentides Wildlife Reserve): An Active Sensors Calibration Site for Forest Mapping and Monitoring Marc Simard (JPL) Lola Fatoyinbo (GSFC) Naiara Pinto and Ralph Dubayah (UMD) marc.simard@jpl.nasa.gov Landscape • 1000m elevation range • Covers 7860 km2 • Gradient from temperate and boreal forests • Variety of management practices – National Parks In 1895 the Laurentian Wildlife Reserve was created to provide fishing, hunting, and recreation opportunities for the people. It covers 7860km2. In 1981 Jacques-Cartier Park was created out of the wildlife reserve as a 671 km² conservation park. The Jacques-Cartier River drains an area of 2515 square kilometres, starting in and flowing for nearly 160 kilometers • Jacques Cartier • Grands-Jardins – Montmorency experimental forests (Université Laval) – Lumber management marc.simard@jpl.nasa.gov More Facts • Classified as boreal zone – Abies balsamea (Balsam Fur), Picea mariana (Black Spruce), Betula papyrifera (Paper Birch) – 1000-1600mm/year precipitation (35% is snow) – Mean annual temperature (0-2 oC) – Growth season between 130-140 days • Public land -> Public access to all sites marc.simard@jpl.nasa.gov UAVSAR campaigns 2009/2010 • UAVSAR Campaign Objectives – Assess the potential of L-band polarimetric radar to measure vegetation 3D structure/biomass – Assess the potential of L-band polarimetric repeat pass inSAR to measure vegetation 3D structure/biomass • Quantify temporal decorrelation marc.simard@jpl.nasa.gov UAVSAR Campaign 2009-2010 PI: Simard,CoI’s: Dubayah and Hensley Funded by the NASA Terrestrial Ecology Program •Test Sites cover a wide range of forest types –New Hampshire (Temperate) –Maine (Temperate) –Québec (Temperate and boreal) –Sierra (Temperate with strong elevational gradient) –La Selva (Tropical) marc.simard@jpl.nasa.gov Airborne and Field Data Collection UAVSAR LVIS L-band polarimetric radar enabled for repeat pass interferometry Laser Vegetation Imaging System • Spatial resolution – – • • UAVSAR: 6m LVIS 25m Swaths • UAVSAR 20km • LVIS 2km (based on max of 5o look for vegetation) In each site, we collected field data (height, DBH,species) marc.simard@jpl.nasa.gov marc.simard@jpl.nasa.gov Data collection strategy • • • UAVSAR images covered transects of ~185km with ~20km swath Covered boreal and temperate forests Large diversity of management practices: – sites are characterized by experimental forests, national parks and managed forests (e.g. lumber) • UAVSAR flew 3 days over a period of about 10 days. • Data collection: – – Aug 5 data flown on 5th, 7th and 14th of August 2009. Providing temporal baselines of 45’, 2, 7 and 9 days Aug 6 X Aug 7 Aug 8 Aug 9 Aug 10 Aug 11 X 45’ Aug 12 Aug 13 Aug 14 x 45’ 45’ 2 7 9 marc.simard@jpl.nasa.gov The Eco3D flight campaign consisted of 3 instruments developed at GSFC (DBSAR, SIMPL and CAR) flying simultaneously on the P-3 aircraft out of the Wallops flight facility: • DBSAR is a digital beamforming L-band Synthetic Aperture Radar • SIMPL is a multibeam, dual-wavelength, polarimetric photon counting lidar • CAR is a multiangular and multispectral passive sensor The campaign took place in August-September, 2011 Eco3D DBSAR SIMPL Spaceborne coverage ALOS/PALSAR (JAXA) marc.simard@jpl.nasa.gov marc.simard@jpl.nasa.gov Objective: Compare Algorithms and Results from Various Investigators and on Several Fronts marc.simard@jpl.nasa.gov Radiometric Calibration Repeat-pass interferometry (zero baseline) marc.simard@jpl.nasa.gov σHV 45’ 2 days 7 days 9 days marc.simard@jpl.nasa.gov 3D mapping and monitoring Simard, Pinto, Fisher, Baccini, JGR, 2011 marc.simard@jpl.nasa.gov Increasing Spatial Resolution fo model with ALOS/PALSAR marc.simard@jpl.nasa.gov marc.simard@jpl.nasa.gov marc.simard@jpl.nasa.gov marc.simard@jpl.nasa.gov SUPER SITE Objective: Multisensor calibration with field data Public access to raw data and analysis SUPER SITE QUALITIES •Data availability •Analysis Transparency •Terrain diversity •Biological diversity •Diversity of management practices PUBLIC ACCESSIBILITY •Data access •Free •Downloadable instantaneously •Acknowledgement rules •Access to Analysis Results from other researchers and related publications DATA • Remote Sensing data – Active – • • Lidar • radar Passive • Radiometer • Optical • Infrared Field data – Weather – – – • Precipitation • Wind Biophysical data • Vegetation stucture • Vegetation type • Biomass Geophysical data • Elevation • Terrain slope • Soil moisture • Soil type Management practices • Land use history • Date of last cut • Insect infestation • Fire history • Vegetation Deseases marc.simard@jpl.nasa.gov Online access to remote sensing data marc.simard@jpl.nasa.gov Online access to field data marc.simard@jpl.nasa.gov Current Datasets From Active Sensors over the Réserve Faunique des Laurentides • • • • • • • • • • • • UAVSAR (08/2009) LVIS (08/2009) DBSAR (06/2011) SIMPL (06/2011) SRTM (February 2000) ICESat/GLAS (2003-2007) TanDEM-X (June-August 2011) High resolution lidar (2010, MRNQ) Field Data (08/2009 and 09/2010) ALOS/PALSAR (2007-2010) RADARSAT (?) … While most of these datasets can be made available publically, some are currently under science agreements.