KMap
Wim van Leeuwen has been a research scientist and a member of the MODIS land science team, has worked on global spectral vegetation index and albedo products and algorithm development in the US and France. He is an Associate Professor in the School of Natural Resources and the Environment & the School of Geography and Development at the University of Arizona, Tucson. He has more than 20 years of geospatial research and remote sensing science experience and is the director of the Arizona Remote Sensing Center at the University of Arizona. His research interests focus on multi-platform remote sensing data fusion and geospatial product development for resource monitoring, management and decision making. Applied research projects include land surface phenology in response to climate and environmental factors, natural and agricultural land use/cover change and snow/water resources, wildlife habitat characterization, and web-based geospatial applications such as http://droughtview.arizona.edu/

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Courses
  • FSEG
    Field Study in Environmental Geography

  • RMUUAS
    Resource Mapping Using Unmanned Aircraft Systems

  • AGISTII
    Advanced Geographic Information Systems & Tech II

  • RSS
    Remote Sensing Science

  • IGCDA
    Introduction to Geospatial Concepts and Defense Applications

  • CPWR
    Conservation Planning & Wildland Recreation

  • B
    Biogeography

  • RSSPE
    Remote Sensing for the Study of Planet Earth

  • GARS
    Geographic Applications of Remote Sensing

  • IRS
    Introduction to Remote Sensing

  • IGISTII
    Intro to Geographic Information Systems & Tech II

  • AGISTI
    Advanced Geographic Information Systems & Tech I

Grants
  • Funding agency logo
    Snowpack Monitoring Research, Modelling Of Snow-Forest Interactions, And Streamflow Forecasting In Northern Arizona's Cragin Watershed

    Principal Investigator (PI)

    2022

    $116.5K
    Active
  • Funding agency logo
    RaBET Development for Rangelands in the Western U.S.

    Principal Investigator (PI)

    2021

    $766.7K
    Active
  • Funding agency logo
    Internships for Desert Southwest CESU 2020-2025

    Principal Investigator (PI)

    2020

    $24.1K
    Active
  • Funding agency logo
    Leadership, Coordination, and Administrative Oversight for the Desert Southwest Cooperative Ecosystem Studies Unit

    Principal Investigator (PI)

    2019

    $78.1K
    Active
  • Funding agency logo
    Monitoring and Modelling the Impact of Forest Change on Snowpack in Northern Arizona

    Principal Investigator (PI)

    2021

    $119.1K
  • Funding agency logo
    Producing an Operational RaBET for Rangelands in the Western U.S.

    Principal Investigator (PI)

    2020

    $353.2K
  • Funding agency logo
    Studying Snow-Forest Interactions with an Ultra-High Resolution Snowpack Mass and Energy Balance Model

    Principal Investigator (PI)

    2020

    $160.3K
  • Funding agency logo
    Assessing Watershed Impacts of the Bighorn Fire

    Principal Investigator (PI)

    2020

    $76.5K
  • Funding agency logo
    Maintaining Field and Web-Based Snow Pack Monitoring of the Verde and Salt River Basins

    Principal Investigator (PI)

    2020

    $25.2K
  • Funding agency logo
    Developing a Near Real-time Seasonal Streamflow Forecasting System Using State of the Art Gridded Snow and Seasonal and Sub-seasonal Weather Forecasting Data

    Principal Investigator (PI)

    2019

    $108.5K
News
  • UA to Train ROTC Students for STEM Work

    2016

  • The Buzz on Mosquitoes, Metropolises in Southern Arizona

    2010

  • Van Leeuwen Joins Faculty Studying Impacts of Weather and Wildfire

    2005

Publications (106)
Recent
  • Canopy Temperature Is Regulated by Ecosystem Structural Traits and Captures the Ecohydrologic Dynamics of a Semiarid Mixed Conifer Forest Site

    2022

  • A Novel Spectral Index to Identify Cacti in the Sonoran Desert at Multiple Scales Using Multi-Sensor Hyperspectral Data Acquisitions

    2022

  • Evaluation of vegetation indices and imaging spectroscopy to estimate foliar nitrogen across disparate biomes

    2022

  • Snowtography quantifies effects of forest cover on net water input to soil at sites with ephemeral or stable seasonal snowpack in Arizona, USA

    2022

  • Multi-Temporal LiDAR and Hyperspectral Data Fusion for Classification of Semi-Arid Woody Cover Species

    2022

  • Climate and Socioeconomic Factors Drive Irrigated Agriculture Dynamics in the Lower Colorado River Basin

    2021

  • Assessing vegetation response to multi-scalar drought across the mojave, sonoran, chihuahuan deserts and apache highlands in the Southwest United States

    2021

  • Structure from Motion of Multi-Angle RPAS Imagery Complements Larger-Scale Airborne Lidar Data for Cost-Effective Snow Monitoring in Mountain Forests

    2020

  • Forest cover and topography regulate the thin, ephemeral snowpacks of the semiarid Southwest United States

    2020

  • Landscape Dynamics in an Iconic Watershed of Northwestern Mexico: Vegetation Condition Insights Using Landsat and PlanetScope Data

    2020

  • Remotely Sensed Changes in Vegetation Cover Distribution and Groundwater along the Lower Gila River

    2020

  • Integrating drone imagery with existing rangeland monitoring programs

    2020

  • Globally Consistent Patterns of Asynchrony in Vegetation Phenology Derived From Optical, Microwave, and Fluorescence Satellite Data

    2020

  • Hydrologic model parameterization using dynamic Landsat-based vegetative estimates within a semiarid grassland

    2019

  • Improving Snow Water Equivalent Maps With Machine Learning of Snow Survey and Lidar Measurements

    2019

  • Mapping saguaro cacti using digital aerial imagery in Saguaro National Park

    2018

  • Viewing Woody-Plant Encroachment through a Social ndash;Ecological Lens

    2018

  • Woody Cover Estimates in Oklahoma and Texas Using a Multi-Sensor Calibration and Validation Approach

    2018

  • Vegetation productivity responses to drought on tribal lands in the four corners region of the Southwest USA

    2018

  • Beyond greenness: Detecting temporal changes in photosynthetic capacity with hyperspectral reflectance data

    2017

  • Historical analysis of riparian vegetation change in response to shifting management objectives on the Middle Rio Grande

    2017

  • Vegetation Productivity Responses to Drought on Tribal Lands in the Four Corners Region of the Southwest U.S.

    2017

  • Convergence in relationships between leaf traits, spectra and age across diverse canopy environments and two contrasting tropical forests

    2017

  • Prediction of Soil Moisture Content and Soil Salt Concentration from Hyperspectral Laboratory and Field Data

    2016

  • Convergence in relations among leaf traits, spectra and age across diverse canopy environments and two contrasting tropical forests

    2016

  • Productivity and phenological responses of natural vegetation to present and future inter-annual climate variability across semi-arid river basins in Chile

    2016

  • Low-cost high-resolution global pyrogenic thermal sensing: Critical information for biosphere-atmosphere interactions

    2016

  • Spatial, temporal, and density-dependent components of habitat quality for a desert owl

    2015

  • Land Use and Environmental Variability Impacts on the Phenology of Arid Agro-Ecosystems

    2015

  • Subsurface soil textural control of aboveground productivity in the US Desert Southwest

    2015

  • Erratum: Spatial, temporal, and density-dependent components of habitat quality for a desert owl (PLoS ONE 10:3 (e0119986) DOI:10.1371/journal.pone.0119986))

    2015

  • Fractional snow cover estimation in complex alpine-forested environments using an artificial neural network

    2015

  • Spatial, Temporal, and Density-dependent Components of Ferruginous Pygmy-Owls Habitat Quality

    2015

  • Correction: Spatial, Temporal, and Density-Dependent Components of Habitat Quality for a Desert Owl

    2015

  • Quantifying the influence of deep soil moisture on ecosystem albedo: The role of vegetation

    2014

  • Assessing transmission of crop diseases by insect vectors in a landscape context

    2014

  • Using remote sensing tools to assess land use transitions in unsustainable arid agro-ecosystems

    2014

  • Estimating Winter Annual Biomass in the Sonoran and Mojave Deserts with Satellite- and Ground-Based Observations

    2013

  • Winter Annual Biomass in the Sonoran and Mojave Deserts with Satellite- and Ground-Based Observations

    2013

  • Hyperspectral Remote Sensing Tools for Quantifying Plant Litter and Invasive Species in Arid Ecosystems

    2012

  • Fine scale spatial urban land cover factors associated with adult mosquito abundance and risk in Tucson

    2012

  • Phenological dynamics of irrigated and natural drylands in Central Asia before and after the USSR collapse

    2012

  • Fine scale spatial urban land cover factors associated with adult mosquito abundance and risk in Tucson, Arizona

    2012

  • Using MODIS-NDVI for the Modeling of Post-Wildfire Vegetation Response as a Function of Environmental Conditions and Pre-Fire Restoration Treatments.

    2012

  • Impacts of climate gradients on the vegetation phenology of major land use types in Central Asia (1981 ndash;2008)

    2012

  • Remotely sensed vegetation phenology and productivity along a climatic gradient: on the value of incorporating the dimension of woody plant cover

    2011

  • Using MODIS-NDVI for the Modeling of Post-Wildfire Vegetation Response as a Function of Environmental Conditions and Pre-Fire Restoration Treatments

    2011

  • Benchmarking enhancements to a decision support system for global crop production

    2011

  • Remotely sensed vegetation phenology of sky islands in the madrean archipelago

    2011

  • Mapping and monitoring riparian vegetation distribution, structure and composition with regression tree models and post-classification change metrics

    2011

  • Benchmarking enhancements to a decision support system for global crop production assessments

    2011

  • Environmental Drivers of NDVI-based Vegetation Dynamics in Central Asia, Special Issue Remote Sensing in Climate Monitoring and Analysis

    2011

  • Environmental Drivers of NDVI-Based Vegetation Phenology in Central Asia

    2011

  • Phenological classification of the United States: A geographic framework for extending multi-sensor time-series data

    2010

  • Remotely sensed vegetation phenology and productivity along a climatic gradient: on the value of incorporating the dimension of woody plant cover.

    2010

  • Phenological Characterization of Desert Sky Island Vegetation Communities with Remotely Sensed and Climate Time Series Data

    2010

  • Feasibility of Invasive Grass Detection in a Desertscrub Community Using Hyperspectral Field Measurements and Landsat TM Imagery

    2010

  • Evaluating Post-wildfire Vegetation Regeneration as a Response to Multiple Environmental Determinants

    2010

  • Evaluating post wildfire vegetation dynamics as a response to multiple environmental determinants.

    2010

  • Fusion of High Resolution Aerial Multispectral and LiDAR Data: Land Cover in the Context of Urban Mosquito Habitat

    2010

  • Monitoring post-wildfire vegetation response with remotely sensed time-series data in Spain, USA and Israel.

    2010

  • An assessment of remotely sensed land surface phenology for detecting spatio-temporal landscape change patterns: Arizona and its National Parks

    2009

  • Discrimination of invaded and native species sites in a semi-desert grassland using MODIS multi-temporal data

    2009

  • Intercomparison, interpretation, and assessment of spring phenology in North America estimated from remote sensing for 1982 to 2006

    2009

  • An Assessment of Land Surface Phenology for Detecting Spatio-Temporal Landscape Change Patterns: Arizona and its National Parks

    2009

  • MODIS Vegetation Indices

    2008

  • Monitoring the Effects of Forest Restoration Treatments on Post-Fire Vegetation Recovery with MODIS Multitemporal Data

    2008

  • Visible, Near-IR, and Shortwave IR Spectral Characteristics of Terrestrial Surfaces

    2008

  • Benchmarking: The end of the process

    2007

  • Phenological characterization of a sky island: insights into vegetation patterns across space and time

    2007

  • Satellite-derived vegetation dynamics applied to post-fire vulnerability assessment in eastern Spain

    2007

  • Our changing biological and climate calendar, or, what is phenology and why should we care?

    2007

  • Spectral Vegetation Indices and Uncertainty: Insights from a Users' Perspective

    2006

  • Vegetation Index greenness global data set White Paper for NASA ESDR/CDR (April 2006)

    2006

  • Integrated crop production observations and information system

    2006

  • Spectral vegetation indices and uncertainty: Insights from a user's perspective

    2006

  • Multi-sensor NDVI data continuity: Uncertainties and implications for vegetation monitoring applications

    2006

  • Intercomparison, interpretation, and assessment of spring phenology in North America estimated from remote sensing for 1982-2006

    2006

  • Biophysical characterization and management effects on semiarid rangeland observed from Landsat ETM+ data

    2005

  • Benchmark the performance of a decision support system

    2005

  • Assimilating NASA data into a crop production estimation system: Risk management

    2005

  • Assimilating NASA Data into a Crop Production Estimation System: Risk Management.

    2005

  • Phenology and trend indicators derived from spatially dynamic bi-weekly satellite imagery to support ecosystem monitoring

    2005

  • Deriving land surface biophysical parameters from satellite data for soil carbon sequenstration

    2004

  • Assimilation of NASA Earth Science Results and Data in National Decision Support Systems

    2003

  • Land surface albedo from the synergistic use of polar (EPS) and geo-stationary (MSG) observing systems: An assessment of physical uncertainties

    2002

  • Uncertainties in albedo derived from geostationary and polar orbiting satellite data

    2001

  • Assessment of the MODIS vegetation index compositing algorithm using quality assurance flags and sun/view angles

    2000

  • Global-scale analysis of vegetation indices for moderate resolution monitoring of terrestrial vegetation

    1999

  • MODIS vegetation index compositing approach: A prototype with AVHRR data

    1999

  • Vegetation change monitoring with spectral indices: The importance of view and sun angle standardized data

    1999

  • Terrestrial biosphere analysis of SeaWiFS data over the Amazon region with MODIS and GLI prototype vegetation indices

    1998

  • The Moderate Resolution Imaging Spectroradiometer (MODIS): Land remote sensing for global change research

    1998

  • Vegetation detection through smoke-filled AVIRIS images: An assessment using MODIS band passes

    1998

  • Evaluation of the MODIS vegetation index compositing algorithm using SeaWiFS data

    1998

  • Deconvolution of remotely sensed spectral mixtures for retrieval of LAI, fAPAR and soil brightness

    1997

  • A comparison of vegetation indices over a global set of TM images for EOS-MODIS

    1997

  • Use of vegetation indices in forested regions: Issues of linearity and saturation

    1997

  • Quality assurance of global vegetation index compositing algorithm using AVHRR data

    1997

  • Effects of standing litter on the biophysical interpretation of plant canopies with spectral indices

    1996

  • Comparison of vegetation index compositing scenarios: BRDF versus maximum VI approaches

    1996

  • Radiative transfer in shrub savanna sites in Niger: preliminary results from HAPEX-Sahel. 3. Optical dynamics and vegetation index sensitivity to biomass and plant cover

    1994

  • Radiative transfer in shrub savanna sites in Niger: preliminary results from HAPEX-Sahel. 1. Modelling surface reflectance using a geometric-optical approach

    1994

  • Biophysical interpretation of a spectral mixture model based on a radiative transfer model and observational data

    1994

  • Normalization of multidirectional red and NIR reflectances with the SAVI

    1991

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