[Grad-postdoc-assn] Opportunity for a research scientist and three postdoctoral scientists at PNNL - Climate modeling of the water cycle

[Paula Fisher]

The Atmospheric Sciences and Global Change Division at Pacific Northwest
National Laboratory (PNNL) is recruiting a research scientist and three
postdoctoral scientists to conduct innovative research in climate modeling
of the water cycle.



Resources:

Atmospheric Sciences and Global Change Division:
http://www.pnnl.gov/atmospheric/

Department of Energy Water Cycle and Climate Extremes Modeling (WACCEM)
project: https://climatemodeling.science.energy.gov/projects/water-
cycle-and-climate-extremes-modeling

Department of Energy Exascale Computing Project (ECP):
https://www.hpcwire.com/2016/09/07/exascale-computing-projec
t-awards-39-8m-22-projects/



*1. Research Scientist – Modeling Water Cycle and Climate Extremes*



PNNL is recruiting a research scientist to advance modeling and
understanding of water cycle and climate extremes, particularly related to
convection, cloud, and precipitation and their interactions with the
large-scale circulation. The successful candidate will conduct research to
advance a non-hydrostatic global variable resolution modeling framework for
multi-resolution simulations through development/evaluation of
parameterizations and improvement/analysis of the physics-dynamics coupling
in the modeling framework. The candidate will work with a team of PNNL
scientists to design, perform, and analyze hierarchical modeling
experiments to investigate how water cycle and climate extremes respond to
warming in the future. Specific topics of climate extremes that expand and
complement existing PNNL research in the Department of Energy funded WACCEM
project include atmospheric rivers, temperature and precipitation extremes,
and floods and droughts.



Qualifications: A Ph.D. degree in atmospheric sciences or related fields.
Expertise in modeling or process understanding of cloud and convection or
related processes such as boundary layer turbulence and land-atmosphere
interactions as well as experience with high performance computing will be
considered favorably during the evaluation.



Applications should include:



·      Cover letter describing the applicant’s research experience and
interests.

·      Curriculum vitae with a list of publications in refereed journals.

·      Names and addresses of three references.



Interested candidates may send further inquiries to Ruby Leung (
Ruby.Leung at pnnl.gov).



To apply, please visit http://jobs.pnnl.gov and search for job ID 305976.



*2. Postdoctoral Scientist – Modeling Mesoscale Organized Convection and
its Response to Global Warming*



Mesoscale organized convection is a major cause of flooding in many regions
worldwide. Representing organized convection has been one of the foremost
challenges in climate modeling, which limits our ability to simulate the
water cycle and its future changes.  The selected candidate will work with
a team of PNNL scientists on advancing modeling and understanding of
mesoscale organized convection. In particular, the candidate will evaluate
a non-hydrostatic global variable resolution modeling framework at spatial
resolution ranging from about 4km to 50km for its ability to simulate
organized convection and related processes. Combining with data analysis,
the model will be used to study and contrast the different convection types
and the role of land-atmosphere interactions on convection in the U.S.
Great Plains and the Amazon. The model will also be used to investigate how
the structure of mesoscale organized convection and the associated extreme
precipitation may change in a warmer climate. These efforts are part of a
larger project Department of Energy funded project (WACCEM) aiming at
understanding how large-scale circulation features modulate regional
precipitation, what controls mesoscale organized convection and the
associated precipitation, and the multiscale connections between
atmospheric circulation and water cycle processes, all in the context of
the changing climate. The position is for two years and renewable
contingent upon performance.



Qualifications: A Ph.D. degree in atmospheric sciences or related fields.
Expertise in using data and models to study convection or related processes
such as clouds, boundary layer turbulence, and land-atmosphere interactions
as well as experience with high performance computing will be considered
favorably during the evaluation.



Applications should include:



·      Cover letter describing the applicant’s research experience and
interests.

·      Curriculum vitae with a list of publications in refereed journals.

·      Names and addresses of three references.



Interested candidates may send further inquiries to Ruby Leung (
Ruby.Leung at pnnl.gov).



To apply, please visit http://jobs.pnnl.gov and search for job ID 305988.



*3. Postdoctoral Scientist – Advancing a Multiscale Modeling Framework
(MMF)*



PNNL is recruiting a postdoctoral scientist to improve modeling of water
cycle processes using a multiscale modeling framework (MMF) that integrates
a cloud-resolving model (CRM) into the U.S. Department of Energy
Accelerated Climate Modeling for Energy (ACME) Earth System model. Research
will be conducted to evaluate different MMF configurations with a two- or
three-dimensional CRM embedded in an atmospheric model with grid resolution
ranging from 100km to 25km. Research will also be conducted to evaluate
several subgrid-scale parameterizations including subgrid momentum
transport in the CRM, which have important effects on boundary layer clouds
and shallow convection, with subsequent impacts on deep convection and
organized convection. Combining systematic evaluation of different CRM
configurations embedded in the ACME high resolution atmosphere, and
exploring physics representations including boundary layer turbulence and
land-atmosphere interactions, the successful candidate will work with PNNL
scientists and contribute to optimizing the MMF for ACME simulations of
water cycle processes, as part of a Department of Energy funded Exascale
Computing Project (ECP).



Qualifications: A Ph.D. degree in atmospheric sciences or related fields.
Expertise in modeling cloud and boundary layer turbulence and experience in
atmospheric modeling, particularly using MMF, and high performance
computing will be considered favorably during the evaluation.



Applications should include:



·      Cover letter describing the applicant’s research experience and
interests.

·      Curriculum vitae with a list of publications in refereed journals.

·      Names and addresses of three references.



Interested candidates may send further inquiries to Ruby Leung (
Ruby.Leung at pnnl.gov).



To apply, please visit http://jobs.pnnl.gov and search for job ID 305989.



*4. Postdoctoral Scientist – Modeling Regional Climate Change and Impacts*



PNNL is recruiting a postdoctoral scientist to develop, evaluate, and
analyze high-resolution climate scenarios using regional climate models and
global variable resolution models for advancing understanding of regional
climate change and facilitating modeling and analysis of climate change
impacts. The successful candidate is also expected to conduct research to
improve the methodology for developing high-resolution climate scenarios,
and to develop diagnostics and metrics to understand, quantify, and compare
model skills. Working with PNNL scientists, the candidate will contribute
to the development of a hierarchical model evaluation framework for
assessing climate simulations relevant to the energy-water-land nexus.



Qualifications: A Ph.D. degree in atmospheric sciences or related fields.
Experience in climate modeling, dynamical downscaling, and analysis of
observations and model outputs will be considered favorably during the
evaluation.



Applications should include:



·      Cover letter describing the applicant’s research experience and
interests.

·      Curriculum vitae with a list of publications in refereed journals.

·      Names and addresses of three references.



Interested candidates may send further inquiries to Ruby Leung (
Ruby.Leung at pnnl.gov).



To apply, please visit http://jobs.pnnl.gov and search for job ID 305987.
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