The National Academies Logo
Research Associateship Programs
Fellowships Office
Policy and Global Affairs

Participating Agencies - NOAA

  Sign InPrintable View

Opportunity at National Oceanic & Atmospheric Administration (NOAA)

Modeling of Atmospheric Trace Gas Sources and Sinks Using Observed Mixing Ratios

Location

Earth System Research Laboratory, Global Monitoring Division

RO# Location
26.05.01.B0566 Boulder, CO 80305

Advisers

Name E-mail Phone
Butler, James Hall james.h.butler@noaa.gov 303.497.6898
Montzka, Stephen A stephen.a.montzka@noaa.gov 303.497.6657

Description

It is possible to estimate emissions using inverse modeling techniques from accurate mixing ratios of many anthropogenic trace gases (e.g., nitrous oxide, chlorofluorocarbons, halons, hydrochlorofluorocarbons, hydrofluorocarbons, sulfur hexafluvoide, and perfluorocarbons) measured worldwide. Comparing existing programs with other network monitoring programs can help enrich the data base for modeling the atmosphere. Model studies are important to determine whether international agreements to reduce the emissions of greenhouse gases or ozone-depleting chemicals (e.g., Montreal Protocol) are carried out. From these models, we can also determine many important atmospheric parameters. For example, OH is Nature’s cleanser, and it can remove many pollutants from the atmosphere. For some trace gases (e.g., CH3CCl3, HCFC-14lb, and C2Cl4) that have accurate industrial emission estimates and are destroyed by OH, it is possible to determine the global distribution of OH. CMDL scientists measure trace gas species produced by anthropogenic and natural processes at their worldwide sites. Some compounds (e.g., CH3CCl3 and CH3Br) have significant sinks in the ocean. Our goal is to determine the strengths of the sources and sinks of important trace gases in order to help policy makers plan strategies for reducing global emissions of harmful pollutants.

 

Keywords:
Atmospheric models; Atmospheric trace constituents; Air pollution;

Eligibility

Citizenship:  Open to U.S. citizens, permanent residents and non-U.S. citizens
Level:  Open to Postdoctoral and Senior applicants

Stipend

Base Stipend Travel Allotment Supplementation
$60,000.00 $2,000.00

Experience Supplement:
Postdoctoral and Senior Associates will receive an appropriately higher stipend based on the number of years of experience past their PhD.

Copyright © 2014. National Academy of Sciences. All rights reserved. 500 Fifth St. N.W., Washington, D.C. 20001.
Terms of Use and Privacy Statement.