Date

Three Postdoctoral Research Positions Available
Lawrence Berkeley National Laboratory
Berkeley, California

All positions are open until filled.


The Lawrence Berkeley National Laboratory seeks applicants to three
postdoctoral research positions: Land-Surface Biogeochemical Modeling,
Three-Dimensional (3D) Reactive Transport Modeling, and Terrestrial
Ecosystem Modeling. All three positions are in the Climate Sciences
Department of the Earth Sciences Division of the Lawrence Berkeley
National Laboratory in Berkeley, California.

The work will be part of the Department of Energy (DOE)-sponsored Next
Generation Ecosystem Experiment (NGEE) whose ultimate goals include the
development of a mechanistic high-latitude land model and
characterization of potential atmospheric feedbacks under expected
climate change.

These positions are open until filled. All positions are one-year term
appointments with the possibility of renewal annually based upon
performance, funding, and operational need.

Land-Surface Biogeochemical Modeling:

This position is for a postdoctoral researcher with expertise in
development, testing, and application of below- and above-ground
biogeochemical models, with focus on high-latitude systems and
atmospheric feedbacks.

The successful candidate will work on static and dynamic vegetation,
soil biogeochemistry, testing the model against extant and new NGEE
observations, and applying the model to characterize feedbacks. The work
will focus on several high-latitude processes, including
characterization of high-latitude vegetation; prediction of future
vegetation distributions; vegetation-mediated biophysical feedbacks with
the atmosphere; interactions between vegetation and soil microbial N
demands; and impacts on the surface energy and green house gas (GHG)
budgets due to decadal-scale changes in vegetation, biogeochemistry, and
hydrology.

The work will require an applicant with a wide range of skills,
including use of state-of-the-art land-surface models; understanding of
methods to model vegetation and belowground processes and dynamics; oral
and written presentation of results; and ability to work in an
integrated team environment. Applicants must have a recent PhD in an
applicable discipline.

For further information about the Land-Surface Biogeochemical Modeler
position, and how to apply for this position, please go to:
http://bit.ly/lbl74047Articlnfo.

Three-Dimensional (3D) Reactive Transport Modeling:

This position is for a postdoctoral researcher with expertise in
development, testing, and application of three-dimensional (3D) reactive
transport models, with specific focus on high-latitude biogeochemistry
and hydrology.

The successful candidate will focus on integration of biogeochemical
reaction networks in a 3D model (e.g., PFLOTRAN, Amanzi), testing of the
model against extant and new NGEE observations, application of the model
to characterize feedbacks, and applicable scaling approaches. The work
will focus on several groups of important high-latitude processes,
including biogeochemistry of GHG fluxes from thawing permafrost,
wetlands, and thermokarst lakes; interactions between vegetation and
microbial nitrogen (N) demands; and impacts on the surface energy and
GHG budgets due to decadal-scale changes in vegetation, biogeochemistry,
and hydrology.

The work will require an applicant with a wide range of skills,
including use of state-of-the-art 3D reactive transport models; ability
to develop representations of complex inter-related terrestrial
ecosystem processes suitable for these types of models; oral and written
presentation of results; and ability to work in an integrated team
environment. A recent PhD in an applicable discipline is required.

For further information about the Three-Dimensional (3D) Reactive
Transport Modeling position, and how to apply for this position, please
go to: http://bit.ly/lbl74048ArticInfo.

Terrestrial Ecosystem Modeling:

This position is for a postdoctoral researcher with expertise in
terrestrial ecosystem modeling with an emphasis on tropical forests.
Structural process-level uncertainty in terrestrial carbon cycling
processes will be a key focus, and identifying key terrestrial ecosystem
processes for next-generation model development will be an important
research goal.

The successful candidate will focus on characterizing and reducing
uncertainty in existing models. The research will address several
sources of uncertainty, including representation and parameterization
of ecosystem processes with an emphasis on processes affecting trees;
spatial heterogeneity; and climate forcing and carbon dioxide
fertilization. Developing and applying inverse methods, sensitivity
analyses, and data assimilation approaches is also of interest.

The work will require an applicant with a wide range of skills, which
may include use and development of state-of-the-art terrestrial
ecosystem models; knowledge of uncertainty, sensitivity, inverse
modeling, and data assimilation methods, including remote sensing; oral
and written presentation of results; and ability to work in an
integrated team environment. A recent PhD is required.

For further information about the Terrestrial Ecosystem Modeling
position, and how to apply for this position, please go to:
http://bit.ly/lbl74051ArticInfo.