R&D

CropSmart - a digital twin for making wiser cropping decisions nationwide

Senior Personnel 2023 - present

Highlights:

Incorporated crop-specific land cover maps with various crop condition data products

Developed crop-specific growth condition analytics functions via open standard APIs

Released operational system and web service to support nationwide decision making

OGC Testbed 19: Machine Learning: Transfer Learning for Geospatial Applications

Project Lead 2023 - 2024

Highlights:

Developed proposal for Machine Learning Components of Machine Learning: Transfer Learning Task

Point of contact at GMU team

Produced demonstration video

Building a Digital Twin for National-scale Field-level Crop Monitoring, Prediction, and Decision Support

Senior Personnel 2022 - 2023

Highlights:

Designed the product logo, storytelling, and pitch presentation

Developed the web service of CropSmart data portal prototype

Spatiotemporal Transfer Learning for Enabling Cross-country and Cross-hemisphere In-season Crop Mapping

Senior Personnel 2022 - present

Highlights:

Developed the transfer learning algorithm and strategy

Explored the computer vision technologies for enhancement of in-season mapping results

Hosting, maintaining, and enhancing the National Agricultural Statistics Service's (NASS) operational online geospatial applications Crop-CASMA and VegScape systems

Software Engineer 2022 - present

Highlights:

Created soil moisture and vegetation index data products of the conterminous U.S. using NASA’s SMAP L4 data and LANCE-MODIS NRT data

Automated the harvest, process, and publish of daily/weekly data products

Developed Web Map Service and Web Processing Service

Machine-learning-based In-season Crop Mapping and Associated Cloud-based Bigdata Cyberinfrastructure to Support USDA NASS Decision Making

Senior Personnel 2021 - present

Highlights:

Developed iCrop - In-season Crop Mapping Explorer

Developed core algorithm for pre- and in-season crop mapping

Improved Understanding and Prediction of Extreme Precipitation in Multiple Urban Systems

Research Assistant 2021 - 2023

Highlights:

Developed the Web Map Service for urban characteristics data

Designed and developed project website

OGC Disasters Resilience Pilot 2019: Rapid Impact Assessment of Extreme Weather on Agricultural Productivity

Project Lead 2019

Highlights:

Investigated the impact of extreme weathers on agricultural productivity

Registered web services and geospatail data through GeoPlatform

Produced demonstration video (part 1, part 2)

USDA NASS Online Geospatial Applications CropScape and VegScape Systems Maintaining, Hosting and Enhancement of NASS Operation

Software Engineer 2018 - 2022

Highlights:

Maintained and enhanced CropScape, VegScape

Published Cropland Data Layer, NDVI, and VCI data through OGC Wed Service

Developed cloud environment for disseminating Cropland Data Layer

WaterSmart: A Cyberinfrastructure-Based Integrated Agro-Geoinformatic Decision-Support Web Service System to Facilitate Informed Irrigation Decision-Making

Senior Personnel 2018 - 2023

Highlights:

Proposed a machine learning method for predicting field-level crop planting maps based on the historical Cropland Data Layer

Presented Prediction of Spatial Distribution of Annual Crop Planting with Machine Learning at IGARSS 2019 in Yokohama, Japan.

Explored the crop rotation patterns in Nebraska State

Presented Development of Google Earth Engine-based Cyberinfrastructure to Support In-season Crop Mapping and Analysis at 2019 AAG Meeting in Washington, D.C.

Research and Development on Geospatial Information Technology and Standards

Software Engineer 2018 - 2021

Highlights:

Developed and maintained GEOSS Information Exchange DataHub based on CKAN

Harvested metadata of the GEOSS Information Exchange DataHub from remote sources such as CKAN instances, CSW servers, and DCAT catalogs.

Managed AmeriGEOSS social media on Twitter, Facebook, LinkedIn, YouTube

Managed GeoGLOWS social media on Twitter and YouTube

CyberWay: Integrated Capabilities of EarthCube Building Blocks for Facilitating Cyber-based Innovative Way of Interdisciplinary Geoscience Studies

Research Assistant 2017 - 2018

Highlights:

Developed Web Processing Service for ESMF Regridding

Presented Towards integrating geospatial web services and cloud infrastructure at 2018 EarthCube All Hands Meeting in Washington, D.C.

Presented Geospatial Model Cloud: a framework of publishing Earth science model through OGC Web Services over cloud at 2018 AAG Meeting in New Orleans, LA

OGC Testbed 13: Earth Observation Clouds: Cloud WPS

Research Assistant 2017

Highlights:

Developed proposal for Cloud WPS Component of Earth Observation Clouds Thread

Developed and enhanced GeoBrain Cloud platform

Contributed in the editing of OGC Testbed 13 Cloud Engineering Report

OGC Testbed 12: Field Operations: GeoPackages Mobile App Data Implementation; Mobile Device GeoPackage Common Map API Implementation

Research Assistant 2016

Highlights:

Developed proposal for GeoPackages Mobile App Data Implementation Component of Command Center Thread and Field Operations Thread

Released and contributed in the development of GPKG Mobile

Presented GPKG Mobile: A GeoPackage Implementation to Facilitate Geospatial Information Study at 2017 ESIP Winter Meeting in Washington, D.C.

EarthCube Building Blocks: CyberConnector: Bridging the Earth Observations and Earth Science Modeling for Supporting Model Validation, Verification, and Inter-Comparison

Research Assistant 2015 - 2017

Highlights:

Developed a cloud-based Web Processing Service framework for Earth system science models

Contributed in the development of CyberConnector