[Enviro-lunch] Reminder: Enviro-Lunch today (3/7): Dr. Bhava Arora from Lawrence Berkeley Lab

[Manisha Dolui]

Hello All,
Please join us today for our Enviro-lunch seminar series guest speaker Dr. Bhavna Arora from Lawrence Berkeley National Laboratory will present her research about reactive transport modeling. Please join us today between 12-1 pm (pacific) via zoom.



https://ucmerced.zoom.us/j/175736103





Title: Deciphering spatio-temporal patterns and using reactive transport models to improve process understanding

See you all soon.

Regards,
Manisha and KJ
________________________________
From: Enviro-lunch <enviro-lunch-bounces at lists.ucmerced.edu> on behalf of Kyungjin Min <kjmin.21 at gmail.com>
Sent: Tuesday, March 1, 2022 11:42 AM
To: enviro-lunch at lists.ucmerced.edu <enviro-lunch at lists.ucmerced.edu>
Subject: [Enviro-lunch] Enviro-Lunch next Monday (3/7): Dr. Bhava Arora from Lawrence Berkeley Lab

[image.png]


Hello all,



Next Monday (3/7) Dr. Bhavna Arora from Lawrence Berkeley National Laboratory will present her research about reactive transport modeling. Please join us between 12-1 pm (pacific) via zoom.



https://ucmerced.zoom.us/j/175736103





Title: Deciphering spatio-temporal patterns and using reactive transport models to improve process understanding



Abstract: Carbon and nitrogen fluxes in soils and groundwater are critical components of global biogeochemical cycles and yet, these dynamics are difficult to predict because of the presence of multiple sources and sinks as well as several processes that affect their uptake and release. Currently, one of the biggest impediments to developing a robust predictive understanding of these fluxes under current and future climate is an incomplete knowledge of spatial heterogeneity and lack of sampling at timescales over which carbon and nutrients are removed, retained, and/or transported. Reactive transport models can be beneficial tools to overcome these constraints and untangle the multiple processes that control the fate and transport of carbon and nitrogen in such environments.

In this seminar, I will present (1) newly developed strategies to interrogate spatially and temporally diverse datasets to improve current understanding of controls on C and N dynamics, (2) model-data integration to incorporate this understanding into reactive transport models, and (3) use reactive transport models to predict system evolution under future climate and mitigation strategies. The flexibility and value of these approaches will be demonstrated using real-world applications that focus on identifying controls on (1) carbon cycling in a floodplain aquifer along the Colorado River, (2) nitrogen cycling in an agricultural setting in Modesto, California, and (3) negative net emissions under enhanced weathering. The seminar will conclude with a discussion of the possibilities to advance the use of reactive transport models and future research opportunities therein.

Bio:

[Bhavna Arora_.jpg]

Bhavna Arora is a Research Scientist in the Energy Geosciences Division at Lawrence Berkeley National Laboratory. She currently serves as the lead for a newly launched Carbon Removal and Mineralization Program. With a Ph.D. in Geoscience from Texas A&M University, her research has focused on advancing predictive understanding of biogeochemical processes in heterogeneous porous media, with the overarching goal of quantifying the impacts of climate and land use changes on ecosystem functioning.

Sincerely,

co-host: KJ Min & Manisha Dolui

Faculty coordinator: Asmeret Asefaw Berhe

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Spring 2022 Enviro-Lunch Schedule

date

speaker

title

1/31

Mariela Garcia Arrendondo
@ Umass-Amherst

Root-mediated weathering

2/7

Michael Philben
@ Hope College

Rethinking carbon and nitrogen isotope fractionation during soil organic matter decomposition

2/14

Alyssa Griffin*
@ UC Davis

The role of coastal marine sediments in carbon cycling from local to global scales

2/21

Presidents’ day



2/28

Katherine Heckman
@ USDA

Density fractionation and soil carbon stabilization

3/7

Bhavna Arora
@ LBNL

Reactive transport modeling

3/14

Darian Smercina
@ PNNL

Free N fixing under switchgrass (Linking microbial scale processes to ecosystem function)

3/21

spring break



3/28

Meng Zhao
@ Stanford U

Plant-water relationship (evapotranspiration) modeling

4/4

Hannah Naughton
@ LBNL

Root vs. topographic generation of redox anomalies on a subalpine hillslope and floodplain

4/11

Michael Rowley
@ LBNL

Ca-mediated soil organic carbon stabilization

4/18

Weiyu Li*
@ Stanford U

Data-driven hydraulic modeling

4/25

Daniel Zuleta

@ Smithsonian Institute

Tree mortality in tropical ecosystems

5/2

Genevieve Noyce
@ Smithsonian Institute

Greenhouse gas emissions from wetland with climate change






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