Research Interests
Earth History, Geophysics, Oceans Ice and Atmospheres, Environmental Science
Pronouns
she/her
Biography
My research group explores global-scale geodynamical problems across many time scales. This includes solid Earth and ocean tides (acting on hours to years), the deformation of the Earth due to the melting of large Pleistocene ice sheets (years to tens of thousands of years), and mantle convection, the process that drives plate tectonics (millions to billions of years). The theme of all of this work is to understand how we can coherently characterize the Earth's behavior across these vastly different time scales and learn fundamental things about our planet.
In a recent study published in Science Advances, DEEPS PhD candidate Manar Al Asad and Assistant Professor Harriet Lau demonstrate that Earth's early tectonic activity was likely very different from what we see today. They propose a 'sluggish-lid' mode, where the Earth's outer layer moved slowly and was partially disconnected from the mantle. The new model addresses previous challenges in understanding Earth's thermal history and tectonic evolution, offering new insights into how Earth's magnetic field is maintained throughout most of Earth's history.
One of the newest DEEPS faculty members, Assistant Professor Harriet Lau, has received the prestigious Packard Fellowship for Science and Engineering. This is in recognition of Harriet's outstanding work to understand the relationships between Earth's deformation and climate.