Latest Updates on MOSART Development and Validation
Updates on MOSART modules including heat, sediment, and lake features presented at the E3SM All-Hands meeting. Development progress, validation results, and ongoing/future work discussed for better water/heat balance coupling in deep water bodies like lakes and reservoirs. Detailed testing and validation processes outlined, showcasing advancements and improvements in parameter estimation at regional and global scales.
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MOSART related updates to the NGD Land group Hong-Yi Li Ruby Leung, Zeli Tan, Tian Zhou, Gautam Bisht (PNNL) Wandamagegn Yigzaw, Senlin Zhu, Guta Abeshu and others November 20, 2019, E3SM All-Hands meeting 1
Outline MOSART-heat: stream temperature module MOSART-sediment: suspended sediment module MOSART-lake MOSART-Carbon 2
MOSART-heat Developed in CLM4-MOSART-wm and validated over U.S. (Li et al., JAMES, 2015) Migrated into the E3SM v2 master branch, passed the bit- 4-bit tests (intel compiler), PR issued (THANKS to Tian, Jon and Gautam) Nightly tests failed with GNU compiler. Currently waiting for Cori to work again with GNU then debug the code there Global validation ongoing 3
MOSART-sediment Completed testing/validation over U.S. (presentation tomorrow) Migrated into the E3SM v2 master branch and passed the bit-4-bit tests (Intel compiler). PR issued, but similar GNU compiler issue expected Will continue to improve the parameter estimation at regional or global scales, e.g., sediment particle size distribution 4
MOSART-lake: status Developed for better coupling of water and heat balances in deep water bodies like lakes and reservoirs Multi-layer vertical discretization for thermal stratification Advective water/heat fluxes from MOSART New reservoir geometry dataset (Yigzaw et al., WRR, 2018; JAMES, 2019) Completed offline testing/validation at over 1,400 reservoirs in U.S. (details see poster A12) 5
MOSART-lake: offline testing results Vertical temperature profiles - Lake Mead 6
MOSART-lake: offline testing results Daily surface temperature - Lake Mead 7
MOSART-lake: ongoing & future work Migrated into the E3SM v2 master branch, currently debugging & testing Will extend to include all major lakes that are currently isolated from rivers in ELM/CLM Incorporate all major lakes into river networks, i.e., advective water/heat fluxes between lakes and rivers New single geometry dataset for all lakes/reservoirs Global evaluation 8
MOSART-Carbon Riverine governing equations identified for POC, DOC and DIC Still need inputs from land in terms of lateral fluxes of POC, DOC and DIC fluxes from soils into rivers Global Nutrient Export to Watersheds (NEWS) model provides long-term estimates at the river-basin scale Will work with the ELM-BGC team for more temporal dynamics 9
