Breadcrumb

Pronouns: she/her
Bio
Technical expert in stable isotope mass spectrometry, including dual inlet and continuous flow techniques. Proficient with IDL coding language for data processing and management.
I lead the SIL team that measures stable isotopes of carbon dioxide and methane from NOAA Global Monitoring Laboratory’s Global Greenhouse Gas Reference Network. In addition to running, maintaining, and troubleshooting a fleet of isotope ratio mass spectrometers, I am also responsible for quality control, calibrations, and uncertainty quantifcation of these samples. I work with international colleagues to establish and maintain good metrological practice for stable isotope measurement of greenhouse gases. Ultimately, our measurements are useful for understanding sources and sinks of carbon dioxide and methane.
Education
- MS: University of Utah, 2004
- BA: Williams College, 1999
Publications
What do we know about the global methane budget? Results from four decades of atmospheric CH4 observations and the way forward
Publication Date: 2021-11-15
Type: Journal Article
Improved Constraints on Global Methane Emissions and Sinks Using delta C-13-CH4
Lan X; Basu S; Schwietzke S; Bruhwiler LMP; Dlugokencky EJ; Michel SE; Sherwood OA; Tans PP; Thoning K; Etiope G...
- Lan X
- Basu S
- Schwietzke S
- Bruhwiler LMP
- Dlugokencky EJ
- Michel SE
- Sherwood OA
- Tans PP
- Thoning K
- Etiope G
Publication Date: 2021-06-01
Type: Journal Article
Evaluation of a field-deployable Nafion (TM)-based air-drying system for collecting whole air samples and its application to stable isotope measurements of CO2
Paul D; Scheeren HA; Jansen HG; Kers BAM; Miller JB; Crotwell AM; Michel SE; Gatti L; Domingues LG; Correia CSC...
- Paul D
- Scheeren HA
- Jansen HG
- Kers BAM
- Miller JB
- Crotwell AM
- Michel SE
- Gatti L
- Domingues LG
- Correia CSC
Publication Date: 2020-07-28
Type: Journal Article
Strong sensitivity of the isotopic composition of methane to the plausible range of tropospheric chlorine
Publication Date: 2020-07-17
Type: Journal Article
Preindustrial (CH4)-C-14 indicates greater anthropogenic fossil CH4 emissions
Hmiel B; Petrenko VV; Dyonisius MN; Buizert C; Smith AM; Place PF; Harth C; Beaudette R; Hua Q; Yang B...
- Hmiel B
- Petrenko VV
- Dyonisius MN
- Buizert C
- Smith AM
- Place PF
- Harth C
- Beaudette R
- Hua Q
- Yang B
Publication Date: 2020-02-01
Type: Journal Article
Enhanced North American carbon uptake associated with El Nino
Hu L; Andrews AE; Thoning KW; Sweeney C; Miller JB; Michalak AM; Dlugokencky E; Tans PP; Shiga YP; Mountain M...
- Hu L
- Andrews AE
- Thoning KW
- Sweeney C
- Miller JB
- Michalak AM
- Dlugokencky E
- Tans PP
- Shiga YP
- Mountain M
Publication Date: 2019-06-01
Type: Journal Article
Very Strong. Atmospheric Methane Growth in the 4 Years 2014-2017: Implications for the paris Agreement
Nisbet EG; Manning MR; Dlugokencky EJ; Fisher RE; Lowry D; Michel SE; Myhre CL; Platt M; Allen G; Bousquet P...
- Nisbet EG
- Manning MR
- Dlugokencky EJ
- Fisher RE
- Lowry D
- Michel SE
- Myhre CL
- Platt M
- Allen G
- Bousquet P
Publication Date: 2019-03-01
Type: Journal Article
Limited impact of El Nino-Southern Oscillation on variability and growth rate of atmospheric methane
Publication Date: 2018-10-30
Type: Journal Article
Interlaboratory comparison of delta C-13 and delta D measurements of atmospheric CH4 for combined use of data sets from different laboratories
Umezawa T; Brenninkmeijer CAM; Rockmann T; van der Veen C; Tyler SC; Fujita R; Morimoto S; Aoki S; Sowers T; Schmitt J...
- Umezawa T
- Brenninkmeijer CAM
- Rockmann T
- van der Veen C
- Tyler SC
- Fujita R
- Morimoto S
- Aoki S
- Sowers T
- Schmitt J
Publication Date: 2018-03-02
Type: Journal Article
Upward revision of global fossil fuel methane emissions based on isotope database (vol 538, pg 88, 2016)
Schwietzke S; Sherwood OA; Bruhwiler LMP; Miller JB; Etiope G; Dlugokencky EJ; Michel SE; Arling VA; Vaughn BH; White JW...
- Schwietzke S
- Sherwood OA
- Bruhwiler LMP
- Miller JB
- Etiope G
- Dlugokencky EJ
- Michel SE
- Arling VA
- Vaughn BH
- White JWC
Publication Date: 2017-03-16
Type: Journal Article
Using delta C-13-CH4 and delta D-CH4 to constrain Arctic methane emissions
Warwick NJ; Cain ML; Fisher R; France JL; Lowry D; Michel SE; Nisbet EG; Vaughn BH; White JWC; Pyle JA...
- Warwick NJ
- Cain ML
- Fisher R
- France JL
- Lowry D
- Michel SE
- Nisbet EG
- Vaughn BH
- White JWC
- Pyle JA
Publication Date: 2016-12-01
Type: Journal Article
Upward revision of global fossil fuel methane emissions based on isotope database
Schwietzke S; Sherwood OA; Ruhwiler LMPB; Miller JB; Etiope G; Dlugokencky EJ; Michel SE; Arling VA; Vaughn BH; White JW...
- Schwietzke S
- Sherwood OA
- Ruhwiler LMPB
- Miller JB
- Etiope G
- Dlugokencky EJ
- Michel SE
- Arling VA
- Vaughn BH
- White JWC
Publication Date: 2016-10-06
Type: Journal Article
Rising atmospheric methane: 2007-2014 growth and isotopic shift
Nisbet EG; Dlugokencky EJ; Manning MR; Lowry D; Fisher RE; France JL; Michel SE; Miller JB; White JWC; Vaughn B...
- Nisbet EG
- Dlugokencky EJ
- Manning MR
- Lowry D
- Fisher RE
- France JL
- Michel SE
- Miller JB
- White JWC
- Vaughn B
Publication Date: 2016-09-01
Type: Journal Article
A 21st-century shift from fossil-fuel to biogenic methane emissions indicated by (CH4)-C-13
Schaefer H; Fletcher SEM; Veidt C; Lassey KR; Brailsford GW; Bromley TM; Dlugokencky EJ; Michel SE; Miller JB; Levin I...
- Schaefer H
- Fletcher SEM
- Veidt C
- Lassey KR
- Brailsford GW
- Bromley TM
- Dlugokencky EJ
- Michel SE
- Miller JB
- Levin I
Publication Date: 2016-04-01
Type: Journal Article