A5054116529- Hydrology and Watershed Management Studies
- Remote Sensing in Agriculture
- Plant Water Relations and Carbon Dynamics
- Flood Risk Assessment and Management
- Rangeland and Wildlife Management
- Fire effects on ecosystems
- Species Distribution and Climate Change
- Remote Sensing and LiDAR Applications
- Hydrology and Sediment Transport Processes
- Agricultural and Environmental Management
- Ecology and Vegetation Dynamics Studies
- Land Use and Ecosystem Services
- Archaeology and Natural History
- Botany and Plant Ecology Studies
- Tree-ring climate responses
- Marine and coastal ecosystems
- Groundwater flow and contamination studies
- Mine drainage and remediation techniques
- Disaster Management and Resilience
- Climate change impacts on agriculture
- Water Quality Monitoring Technologies
- Allergic Rhinitis and Sensitization
- Botany, Ecology, and Taxonomy Studies
- Soil erosion and sediment transport
- Leaf Properties and Growth Measurement
University of Waikato
2018-2020
University of Arizona
2012-2018
TH Köln - University of Applied Sciences
2017
Dryland river basins frequently support both irrigated agriculture and riparian vegetation remote sensing methods are needed to monitor water use by crops natural in irrigation districts. We developed an algorithm for estimating actual evapotranspiration (ETa) based on the Enhanced Vegetation Index (EVI) from Moderate Resolution Imaging Spectrometer (MODIS) sensor EOS-1 Terra satellite locally-derived measurements of reference crop ET (ETo). The was calibrated with five years ETa data three...
Remote sensing by satellite-borne sensors presents a significant opportunity to enhance the spatio-temporal coverage of environmental monitoring programmes for lakes, but estimation classic water quality attributes from inland bodies has not reached operational status due difficulty discerning spectral signatures optically active constituents. Determination colour, as perceived human eye, does require knowledge inherent optical properties and therefore represents generally applicable...
Abstract The Upper San Pedro River is one of the few remaining undammed rivers that maintain a vibrant riparian ecosystem in southwest United States. However, its forest threatened by diminishing groundwater and surface water inputs, due to either changes watershed characteristics such as upland vegetation, or human activities regional pumping. We used satellite vegetation indices quantify green leaf density groundwater‐dependent from 1984 2012. river was divided into southern, upstream...
Northern tamarisk beetles ( Diorhabda carinulata ) were released in the Upper Colorado River Basin United States 2004–2007 to defoliate introduced shrubs Tamarix spp.) region's riparian zones. The primary purpose was control invasive shrub and reduce evapotranspiration (ET) by an attempt increase stream flows. We evaluated beetle–tamarisk interactions with MODIS Landsat imagery on 13 river systems, vegetation indices used as indicators of extent defoliation ET. Beetles are widespread exhibit...
Observations by satellite sensors provide data on inland water systems at spatial and temporal coverage superior to current monitoring programmes. We derived an empirical relationship for Secchi depth using in situ from eight lakes the Landsat 5 Thematic Mapper, 7 Enhanced Mapper Plus 8 Operational Land Imager between 1999 2018 Rotorua Lakes Region New Zealand. This was then applied all of 23 that region. A trend analysis annual summertime averages revealed several statistically significant...
Juniper trees are widely distributed throughout the world and common sources of allergies when microscopic pollen grains transported by wind inhaled. In this study, we investigated spectral influences pollen-discharging male juniper cones within a canopy. This was done through controlled outdoor experiment involving ASD FieldSpec Pro Spectroradiometer measurements over canopies varying cone densities. Broadband narrowband reflectance vegetation index (VI) patterns were evaluated as to their...