- Remote Sensing and LiDAR Applications
- Forest ecology and management
- Remote Sensing in Agriculture
- Forest Ecology and Biodiversity Studies
- Data Mining Algorithms and Applications
- Plant Water Relations and Carbon Dynamics
- Statistics Education and Methodologies
- Big Data and Business Intelligence
- Big Data Technologies and Applications
- Web and Library Services
- Fire effects on ecosystems
- Soil and Water Nutrient Dynamics
- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Forest Management and Policy
- Species Distribution and Climate Change
- Bioenergy crop production and management
- Advanced Computational Techniques and Applications
- Information Retrieval and Search Behavior
- Hydrology and Watershed Management Studies
- Data Quality and Management
- Library Collection Development and Digital Resources
- Data Analysis with R
- Advanced Research in Systems and Signal Processing
- Bluetooth and Wireless Communication Technologies
Purdue University West Lafayette
2014-2023
Michigan State University
2018-2023
Ecological Society of America
2023
State Street (United States)
2021-2022
Shanghai American School
2021
Shandong University
2010
Tsinghua University
2008-2009
Airborne Laser Scanning (ALS) has been considered as a primary source to model the structure and function of forest canopy through indicators leaf area index (LAI) vertical profiles density (LAD). However, little is known about effects laser pulse grain size (horizontal binning resolution) point cloud on estimation LAD their associated LAIs. Our objective was determine optimal values for reliable stable estimates from ALS data obtained over dense tropical forest. Profiles were compared using...
Abstract The measurement of forest structure has evolved steadily due to advances in technology, methodology, and theory. Such have greatly increased our capacity describe key structural elements resulted a range approaches from traditional analog tools such as tapes highly derived computationally intensive methods advanced remote sensing (e.g., lidar, radar). This assortment results metrics unique each method, with the caveat that may be biased or constrained by approach taken. While...
Extreme precipitation events affect water quantity and quality in various regions of the world. Heavy 2019 resulted a record high area unplanted agricultural fields U.S. especially Maumee River Watershed (MRW). March–July phosphorus (P) loads from MRW drive harmful algal bloom (HAB) severity Lake Erie; hence changes management that influence P export can ultimately HAB severity. In this study, we found dissolved reactive (DRP) load was 29% lower than predicted, while particulate (PP) similar...
Forest canopy height model (CHM) is useful for analyzing forest stocking and its spatiotemporal variations. However, high-resolution CHM with regional coverage commonly unavailable due to the high cost of LiDAR data acquisition computational associated processing. We present a generation method using U.S. Geological Survey (USGS) 3D Elevation Program (3DEP) tree measurement capabilities entire state Indiana, USA. The accuracy was investigated in relation point density, inventory height,...
Cloud forest in the Central Highlands of Guatemala provides important ecosystem services for Q'eqchi' Maya but has been disappearing at an increasing rate recent decades. This research documents changes cloud cover, explores some contributing factors to deforestation, and considers preservation food security implications communities. We used a transdisciplinary framework that synthesized remote sensing/GIS analysis land cover change, focus group dialogs, surveys. Expansion subsistence...
Bat conservation in the eastern United States following onset of white‐nose syndrome necessitates and production important summer habitat required by bats for both diurnal roosting nocturnal foraging commuting. Forest management via silvicultural applications can purposely direct forest succession so features are retained developed. The effects timber harvest on at large spatiotemporal scales a species not always readily apparent but be investigated with spatially explicit dynamic modeling....
Sound forest management requires accurate maps at an appropriate scale. Forest cover data developed a national scale may be too coarse for local level. We demonstrated two-stage unsupervised classification, integrating Continuous Inventory (CFI) and Landsat imageries, to classify types Indiana State Forests (ISF) 8-km surrounding areas. In the first stage, automatic classification assisted by CFI was applied in ISF. second resultant information from stage used expand area into Splitting...
Precise tree inventory plays a critical role in sustainable forest planting, restoration, and management. LiDAR-based individual detection algorithms often focus on finding treetops to discern positions. However, deliquescent forms (broad, flattened crowns) deciduous forests can make these ineffective. In this study, we propose stepwise approach, by first identifying trees using horizontal point density then analyzing their vertical structure profiles. We project LiDAR data onto 2D plane...
Delineation of individual deciduous trees with Light Detection and Ranging (LiDAR) data has long been sought for accurate forest inventory in temperate forests. Previous attempts mainly focused on high-density LiDAR to obtain reliable delineation results, which may have limited applications due the high cost low availability such data. Here, feasibility tree low-density was examined using a point-density-based algorithm. First high-resolution point density model (PDM) developed from cloud...
Today, grid computing has become an important component in distributed and lead to rapid advances many disciplines. Consequently, novel methods applications have been proposed for trace analysis systems better facilitate users' need computing. In this survey, we investigate recent analysis; discuss advantages limitations of these fruitful works; summarize a general framework analysis. We various also show that the with integrations several effective models techniques tend perform well.
With the further development of network and information technology, SNS websites established on theory Six Degrees Separation appear rapidly, trend presents explosively. Their appearances prove that there is some same between physical world & virtual world. Its interpersonal relationship networking brings communication broadcasting into a period social networking. This article based pervasive computing, models structure through J2ME (CLDC/MIDP) TWaver. Also, this analyzes channels...