Jud seeks to understand how externally-forced and internally-driven changes affect the earth's climate. He uses paleoclimate archives to help evaluate both current climate trends and climate models, which are used to project future changes. Jud focuses on producing long records of hydroclimate using speleothems, corals, and forams from the tropics as well as quantifying the uncertainty of climate reconstructions and then comparing the paleoclimate data to climate model output.

Areas of Expertise

Paleoclimate, Stable and Radiogenic Isotope Geochemistry


Research Locations



Current Research Programs & Projects

Reconstruct past hydrologic changes in the Western Pacific Warm Pool using cave stalagmites


Member, American Geophysical Union

Member, Geological Society of America