Jeffrey D. Walker, PhD

Environmental Data Scientist and Engineer

Making environmental data more accessible and easier to understand. Specializing in environmental databases, modeling, and data visualization.

Need help? Get in touch!

Highlighted Projects

Piscataqua Watershed Data Explorer

Piscataqua Region Estuaries Partnership (PREP) | 2023

An interactive data explorer for accessing, visualizing, and downloading water quality data in the Piscataqua River watershed.

MA Stream Temperature and Thermal Habitat Study

MassWildlife | 2023

A regional model for predicting climate-driven changes in stream temperature and thermal habitats of gauged and ungauged streams and rivers in Massachusetts based on air temperature and spatial landscape characteristics.

Alaska Water Temperature Database (AKTEMP)

Alaska Center for Conservation Science at Univ. Alaska, Anchorage | 2021-present

A water temperature database for exploring, uploading, managing, and downloading stream and lake temperature data across Alaska.

Flow Photo Explorer (FPE)

US Geological Survey | 2020-present

An integrated database, data visualization, and machine learning platform for predicting streamflow from timelapse imagery.

Passive Acoustic Cetacean Map (PACM)

NOAA Northeast Fisheries Science Center | 2021-present

Interactive data visualization tool developed for the NOAA NEFSC Passive Acoustic Research Group for exploring detections of whales and other cetaceans using passive acoustic monitoring.

MassBays Ecohealth Tracking Tool

MassBays | 2021-2022

An interactive data visualization tool for exploring habitat and water quality data along Massachusetts coastal embayments.

Sprague River Basin Nutrient Loading Dynamics

Klamath Tribes Natural Resources Department | 2022

Estimation and trend analysis of watershed loading and in-lake nutrient (P, N) budgets of a shallow, hyper-eutrophic lake using long-term monitoring datasets.

Upper Klamath Lake Water and Nutrient Mass Balances

Klamath Tribes Natural Resources Department | 2022

Estimation and trend analysis of watershed loading and in-lake nutrient (P, N) budgets of a shallow, hyper-eutrophic lake using long-term monitoring datasets.

EcoSHEDS

US Geological Survey | 2014-present

A collection of databases, models, and data visualization tools designed to improve our understanding of stream ecosystems.

Upper Klamath Lake Inflow/Outflow Study

US Fish and Wildlife Service, Aquatic Ecosystem Sciences LLC | 2021

An exploratory data analysis of phosphorus loading dynamics in a shallow, hyper-eutrophic lake to evaluate whether recent inflow loads are closely coupled with outflow loads due to rapid cycling between the water column and the sediment.

See all Projects →