<div dir="ltr"><p class="MsoNormal" style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;color:black">The Atmospheric
Sciences and Global Change Division at Pacific Northwest National Laboratory
(PNNL) is seeking one (1) highly motivated postdoctoral research associate to
work on regional CO₂ flux estimation modeling within NASA carbon
cycle program such as Carbon Monitoring System (CMS, </span><a href="https://carbon.nasa.gov/" style="color:blue"><span style="font-size:11pt">https://carbon.nasa.gov/</span></a><span style="font-size:11pt;color:black">). </span></p>

<p class="MsoNormal" style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;color:black">The incumbent will
contribute to the development and evaluation of regional carbon flux estimation
modeling framework leveraging constraints from an increasingly large volume of
satellite (i.e. OCO-2, OCO-3, GeoCARB) and in situ CO₂ data, aiming
at in improving spatial resolution and uncertainty quantification and improving
the fidelity of atmospheric transport </span><span style="font-size:11pt;color:black">simulations. The assignments will include one
or more of the following:</span><span style="font-size:11pt;color:black"></span></p>

<p class="gmail-MsoListParagraphCxSpFirst" style="margin:0in 0in 0in 0.5in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:Symbol;color:black">·<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">       </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">assessing transport, biogenic CO₂ flux, and
boundary condition uncertainty over North America using an ensemble approach</span></p>

<p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.5in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:Symbol;color:black">·<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">       </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">evaluating the impact of the uncertainty quantifications
on the estimated CO₂ fluxes </span></p>

<p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.5in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:Symbol;color:black">·<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">       </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">implementing a variety of CO₂ measurements
into an Eulerian hybrid 4DVar framework </span></p>

<p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.5in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:Symbol;color:black">·<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">       </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">designing and carrying out a set of Observation System
Simulation Experiments (OSSEs) for GeoCARB</span></p>

<p class="gmail-MsoListParagraphCxSpLast" style="margin:0in 0in 0in 0.5in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;color:rgb(0,32,96)"> </span></p>

<p class="MsoNormal" style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;color:black">The incumbent will work in close collaboration with carbon data
assimilation experts at PNNL and various institutions and companies, Bayesian
inversion modelers and experts in ground-based measurements at NOAA, and
satellite retrieval experts at Colorado State University. </span></p>

<p class="MsoNormal" style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;color:black"> </span></p>

<span id="gmail--1250415938">
 <p class="gmail-MsoListParagraphCxSpFirst" style="margin:0in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:Calibri,sans-serif">Required
 qualifications:</span><span style="font-family:Calibri,sans-serif"></span></p>
 <p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New"">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">  
 </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif">A Ph.D. in atmospheric science,
 geoscience, environmental science, civil and environmental engineering, or a
 related field;  </span></p>
 <p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New"">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">  
 </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif">Demonstrated
 experience <span style="color:black">in atmospheric modeling;</span></span><span style="font-size:11pt;font-family:Calibri,sans-serif"> </span></p>
 <p class="gmail-MsoListParagraphCxSpLast" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New"">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">  
 </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">Experience with
 high-performance computing environments;</span><span style="font-size:11pt;font-family:Calibri,sans-serif"></span></p>
 <p class="MsoNormal" style="margin:0in 0in 0in 0.75in;vertical-align:baseline;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;font-family:"Courier New"">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">  
 </span></span><span dir="LTR"></span><span style="font-size:11pt">Fluency
 in Fortran, NCL, and Python/shell scripting. </span></p>
 <p class="MsoNormal" style="margin:0in 0in 0in 0.75in;vertical-align:baseline;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt"> </span></p>
 <p class="MsoNormal" style="vertical-align:baseline;margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;color:black">Preferred qualification:</span></p>
 <p class="gmail-MsoListParagraphCxSpFirst" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New";color:black">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">   </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">Experience in developing and evaluating atmospheric
 transport models (e.g., WRF-Chem, CMAQ, JEDI). </span></p>
 <p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New";color:black">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">   </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">Strong interpersonal communication skills;</span></p>
 <p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New";color:black">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">   </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">Ability to publish work in peer-reviewed
 journals; </span></p>
 <p class="gmail-MsoListParagraphCxSpLast" style="margin:0in 0in 0in 0.75in;font-size:12pt;font-family:Cambria,serif"><span style="font-size:11pt;font-family:"Courier New";color:black">o<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">   </span></span><span dir="LTR"></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:black">Strong team player with the willingness and
 ability to work independently.</span><span style="font-size:11pt;font-family:"Times New Roman",serif;color:black"></span></p>
</span>

<p class="MsoNormal" style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"> </p>

<p class="MsoNormal" style="margin:0in;font-size:12pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;color:black">To apply, please upload your CV to </span><a href="https://careers.pnnl.gov/jobs/2305?lang=en-us">https://careers.pnnl.gov/jobs/2305?lang=en-us</a>
<span style="font-size:11pt;color:black">by November 13th,
2021</span></p></div>