GFDL Informal Seminar

Tue, Dec 4, 2018, 10:30 am to 12:00 pm

The goal of the Model Parameter Optimization(MPO) framework presented here is to use machine-learning to map the parameter space of one resolution of a model configuration to another higher resolution. This talk presents a brief introduction to neural networks, details of the technical implementation of the MPO, and a demonstration of the MPO using the double gyre test case within MOM6. We show that a neural network trained on output from a 1/2 degree version of the test case run with a range of Laplacian viscosities ~(500 m^2/s to 50000 m^2/s) generates a nonlinear mapping to the equivalent viscosity in a 1/4 degree resolution case. Given a particular value of viscosity at one resolution, this mapping can thus predict the value of viscosity needed to maximize the behavior of the model to the other, higher resolution. Additionally, this talk examines various subsets of diagnostics (mass transports, streamfunction, and dye tracers injected at various points in the domain) to determine which are most useful to train the neural network. Lastly, the MPO framework is shown to be extensible to more complex simulations and parameter spaces.

Location: 
Smagorinsky Seminar Room 209
Speaker(s): 

Environmental Geology & Geochemistry Seminar (EGGS) Seminar

Thu, Oct 17, 2019, 12:30 pm to 1:30 pm
Location: Guyot 220

PEI Conference (co-sponsored by Princeton's Brazil Lab and PIIRS)

Thu, Oct 17, 2019, 2:00 pm to 4:45 pm
Location: Julis Romo Rabinowitz Building, Room 399

David Bradford Energy and Environmental Policy Seminar

Mon, Oct 21, 2019, 12:15 pm to 1:15 pm
Location: 300 Wallace Hall

GEO/AOS/PEI Climate Seminar

Mon, Oct 21, 2019, 4:00 pm to 5:00 pm
Location: Guyot 220

GEO Department Lecture

Tue, Oct 22, 2019, 12:30 pm to 1:20 pm
Location: Guyot 10

Environmental Geology & Geochemistry Seminar (EGGS) Seminar

Thu, Oct 24, 2019, 12:30 pm to 1:30 pm
Location: Guyot 220

Princeton Environmental Forum

Thu, Oct 24, 2019, 4:30 pm to Fri, Oct 25, 2019, 7:00 pm
Location: Richardson Auditorium, Alexander Hall

GEO Solid Earth Brown Bag

Fri, Oct 25, 2019, 12:00 pm to 1:00 pm
Location: Guyot 220

GFDL Lab/Science Review

Tue, Oct 29, 2019, 8:00 am to 6:00 pm
Location: Frick Chemistry Laboratory

GFDL Lab/Science Review

Wed, Oct 30, 2019, 8:00 am to 6:00 pm
Location: Frick Chemistry Laboratory