Here is the NOAA CarbonTracker submission to the GCP for 2024.

Optimized monthly fluxes can be downloaded at https://gml.noaa.gov/aftp/products/carbontracker/co2/GCP2024/GCP2024.flux1x1-monthly.nc.  First-guess ("priors" but not really) fluxes for CT2022 are available at https://gml.noaa.gov/aftp/products/carbontracker/co2/CT2022/fluxes/unoptimized/. Note that as I've already stated, CT2022 is the mean of two inversions using distinct land, ocean, fire, and FF first-guess fluxes.

ObsPack samples can be found at https://gml.noaa.gov/aftp/products/carbontracker/co2/GCP2024/GCP2024.ObsPack.tgz (zipped tar file). The CT_assim variable indicates whether data were assimilated (value 1) , withheld (value 2), or not used (value 0). Model residuals should be computed as model_co2_final - measured_value. Multiply by 1e6 to get ppm.

The requested latitude-band annual fluxes can be found in https://gml.noaa.gov/aftp/products/carbontracker/co2/GCP2024/GCP2024.latbands.tgz. This is a tarred gzip file with one CSV file per latitude band. Latitude band 1 is the southern extratropics, lat band 2 is the tropics, band 3 is the northern extratropics, and band 4 is the globe. These indices also are noted in comments within the files themselves. Units are PgC/yr.

Since we are limited to a single contributor, that would be me. For publication purposes, my name and affiliation are "Andrew R. Jacobson, Cooperative Institute for Research in Environmental Sciences, CU Boulder and NOAA Global Monitoring Laboratory"

Please include this acknowledgment text:

"This research was supported in part by NOAA cooperative agreement NA22OAR4320151. CarbonTracker CT2022 and CT-NRT.v2024-1 results provided by NOAA GML, Boulder, Colorado, USA from the website at http://carbontracker.noaa.gov"

Model description:

The NOAA CarbonTracker submission consists of the CT2022 release (Jacobson et al. 2023a) extended by the CarbonTracker Near-Real Time release CT-NRT.v2024-1 (Jacobson et al. 2024). Both of these simulations optimize fluxes by estimating weekly scaling factors for 156 ecoregions spanning the globe. These scaling factors multiply first-guess fluxes from upstream biogeochemical simulations for the ocean and land biosphere. Optimization is performed using a 150-member ensemble of TM5 transport simulations (Krol et al. 2005) using a 12-week windowed ensemble Kalman filter. Wildfire and fossil-fuel CO2 emissions are prescribed. Standard CarbonTracker releases are the average of optimized fluxes from two inversions using distinct first-guess fluxes from an ensemble of terrestrial and ocean models. The CarbonTracker Near-Real Time (CT-NRT) system differs in that its first-guess fluxes come from the climatology of optimized fluxes from CT2022 plus a statistical flux anomaly model driven by anomalies of temperature, sunlight, and precipitation. The CT-NRT simulations are designed to use the fewer and provisional CO2 measurement data from the near-real time CO2 ObsPack product (Schuldt et al. 2024). CarbonTracker was first introduced by Peters et al. 2005 and has been improved continuously since.  It is extensively documented and evaluated at https://carbontracker.noaa.gov/. CT releases extended by CT-NRT simulations have been used in Peiro et al. (2022) and Byrne et al. (2023).


References

Byrne et al. (2023) is:

> B. Byrne, D. F. Baker, S. Basu, M. Bertolacci, K. W. Bowman, D. Carroll, A. Chatterjee, F. Chevallier, P. Ciais, N. Cressie, D. Crisp, S. Crowell, F. Deng, Z. Deng, N. M. Deutscher, M. K. Dubey, S. Feng, O. E. Garc ́ıa, D. W. T. Griffith, B. Herkommer, L. Hu, A. R. Jacobson, R. Janardanan, S. Jeong, M. S. Johnson, D. B. A. Jones, R. Kivi, J. Liu, Z. Liu, S. Maksyutov, J. B. Miller, S. M. Miller, I. Morino, J. Notholt, T. Oda, C. W. O’Dell, Y.-S. Oh, H. Ohyama, P. K. Patra, H. Peiro, C. Petri, S. Philip, D. F. Pollard, B. Poulter, M. Remaud, A. Schuh, M. K. Sha, K. Shiomi, K. Strong, C. Sweeney, Y. T ́e, H. Tian, V. A. Velazco, M. Vrekoussis, T. Warneke, J. R. Worden, D. Wunch, Y. Yao, J. Yun, A. Zammit-Mangion, and N. Zeng. National CO2 budgets (2015–2020) inferred from atmospheric CO2 observations in support of the global stocktake. Earth System Science Data, 15(2):963–1004, 2023. doi:10.5194/essd-15-963-2023.


Jacobson et al. (2023a) is

>
> Andrew R. Jacobson, Kenneth N. Schuldt, Pieter Tans, Arlyn Andrews, John B. Miller, Tomohiro Oda, Sourish Basu, John Mund, Brad Weir, Lesley Ott, Tuula Aalto, James Brice Abshire, Ken Aikin, Shuji Aoki, Francesco Apadula, Sabrina Arnold, Bianca Baier, Jakub Bartyzel, Andreas Beyersdorf, Tobias Biermann, Sebastien C. Biraud, Harald Boenisch, Gordon Brailsford, Willi A. Brand, Gao Chen, Huilin Chen, Lukasz Chmura, Shane Clark, Aurelie Colomb, Roisin Commane, Sébastien Conil, Cédric Couret, Adam Cox, Paolo Cristofanelli, Emilio Cuevas, Roger Curcoll, Bruce Daube, Kenneth J. Davis, Stephan De Wekker, Julian Della Coletta, Marc Delmotte, Elizabeth DiGangi, Joshua P. DiGangi, Alcide Giorgio di Sarra, Ed Dlugokencky, James W. Elkins, Lukas Emmenegger, Shuangxi Fang, Marc L. Fischer, Grant Forster, Arnoud Frumau, Michal Galkowski, Luciana V. Gatti, Torsten Gehrlein, Christoph Gerbig, Francois Gheusi, Emanuel Gloor, Vanessa Gomez-Trueba, Daisuke Goto, Tim Griffis, Samuel Hammer, Chad Hanson, László Haszpra, Juha Hatakka, Martin Heimann, Michal Heliasz, Arjan Hensen, Ove Hermansen, Eric Hintsa, Jutta Holst, Viktor Ivakhov, Daniel A. Jaffe, Armin Jordan, Warren Joubert, Anna Karion, Stephan Randolph Kawa, Victor Kazan, Ralph F. Keeling, Petri Keronen, Tobias Kneuer, Pasi Kolari, Kateřina Komínková, Eric Kort, Elena Kozlova, Paul Krummel, Dagmar Kubistin, Casper Labuschagne, David H.Y. Lam, Xin Lan, Ray L. Langenfelds, Olivier Laurent, Tuomas Laurila, Thomas Lauvaux, Jost Lavric, Beverly E. Law, John Lee, Olivia S.M. Lee, Irene Lehner, Kari Lehtinen, Reimo Leppert, Ari Leskinen, Markus Leuenberger, Ingeborg Levin, Janne Levula, John Lin, Matthias Lindauer, Zoe Loh, Morgan Lopez, Ingrid T. Luijkx, Chris René Lunder, Toshinobu Machida, Ivan Mammarella, Giovanni Manca, Alistair Manning, Andrew Manning, Michal V. Marek, Melissa Yang Martin, Hidekazu Matsueda, Kathryn McKain, Harro Meijer, Frank Meinhardt, Lynne Merchant, N. Mihalopoulos, Natasha L. Miles, Charles E. Miller, Logan Mitchell, Meelis Mölder, Stephen Montzka, Fred Moore, Heiko Moossen, Eric Morgan, Josep-Anton Morgui, Shinji Morimoto, Jennifer Müller-Williams, J. William Munger, David Munro, Cathrine Lund Myhre, Shin-Ichiro Nakaoka, Jaroslaw Necki, Sally Newman, Sylvia Nichol, Yosuke Niwa, Florian Obersteiner, Simon O\'Doherty, Bill Paplawsky, Jeff Peischl, Olli Peltola, Salvatore Piacentino, Jean-Marc Pichon, Penelope Pickers, Steve Piper, Joseph Pitt, Christian Plass-Dülmer, Stephen Matthew Platt, Steve Prinzivalli, Michel Ramonet, Ramon Ramos, Enrique Reyes-Sanchez, Scott J. Richardson, Haris Riris, Pedro P. Rivas, Thomas Ryerson, Kazuyuki Saito, Maryann Sargent, Motoki Sasakawa, Bert Scheeren, Tanja Schuck, Marcus Schumacher, Thomas Seifert, Mahesh Kumar Sha, Paul Shepson, Michael Shook, Christopher D. Sloop, Paul Smith, Kieran Stanley, Martin Steinbacher, Britton Stephens, Colm Sweeney, Kirk Thoning, Helder Timas, Margaret Torn, Kjetil Tørseth, Pamela Trisolino, Jocelyn Turnbull, Pim van den Bulk, Danielle van Dinther, Alex Vermeulen, Brian Viner, Gabriela Vitkova, Stephen Walker, Andrew Watson, Steven C. Wofsy, Justin Worsey, Doug Worthy, Dickon Young, Sönke Zaehle, Andreas Zahn, Miroslaw Zimnoch. CarbonTracker CT2022, 2023.DOI: 10.25925/z1gj-3254

Jacobson et al. (2024) is:

> Andrew R. Jacobson, Kenneth N. Schuldt, Pieter Tans, Arlyn Andrews, John B. Miller, Tomohiro Oda, Sourish Basu, John Mund, Brad Weir, Lesley Ott, Tuula Aalto, James Brice Abshire, Ken Aikin, Shuji Aoki, Grant Allen, Francesco Apadula, Sabrina Arnold, Bianca Baier, Peter Bakwin, Lukas Bäni, Jakub Bartyzel, Gilles Bentz, Peter Bergamaschi, Andreas Beyersdorf, Tobias Biermann, Sebastien C. Biraud, Pierre-Eric Blanc, Harald Boenisch, David Bowling, Gordon Brailsford, Willi A. Brand, Dominik Brunner, Thao Paul V. Bui, Francescopiero Calzolari, Cecilia S. Chang, Gao Chen, Huilin Chen, Lukasz Chmura, Jason M. St. Clair, Shane Clark, Aurelie Colomb, Roisin Commane, Franz Conen, Sébastien Conil, Cédric Couret, Paolo Cristofanelli, Emilio Cuevas, Roger Curcoll, Bruce Daube, Kenneth J. Davis, Jonathan M. Dean-Day, Rodrigo A. F. de Souza, Stephan De Wekker, Julian Della Coletta, Marc Delmotte, Elizabeth DiGangi, Joshua P. DiGangi, Tatiana Di Iorio, Alcide Giorgio di Sarra, Ed Dlugokencky, James W. Elkins, Michael Elsasser, Lukas Emmenegger, Shuangxi Fang, Marc L. Fischer, Grant Forster, James France, Arnoud Frumau, Marta Fuente-Lastra, Michal Galkowski, Luciana V. Gatti, Torsten Gehrlein, Christoph Gerbig, Francois Gheusi, Emanuel Gloor, Daisuke Goto, Tim Griffis, Samuel Hammer, Thomas F. Hanisco, Chad Hanson, László Haszpra, Juha Hatakka, Martin Heimann, Michal Heliasz, Daniela Heltai, Stephan Henne, Arjan Hensen, Christian Hermans, Ove Hermansen, Eric Hintsa, Antje Hoheisel, Jutta Holst, Laura T. Iraci, Viktor Ivakhov, Daniel A. Jaffe, Armin Jordan, Warren Joubert, Anna Karion, Stephan Randolph Kawa, Victor Kazan, Ralph F. Keeling, Petri Keronen, Jooil Kim, Jörg Klausen, Tobias Kneuer, Pasi Kolari, Kateřina Komínková, Eric Kort, Elena Kozlova, Paul B. Krummel, Dagmar Kubistin, Susan S. Kulawik, Nicolas Kumps, Casper Labuschagne, David H.Y. Lam, Xin Lan, Ray L. Langenfelds, Andrea Lanza, Olivier Laurent, Tuomas Laurila, Thomas Lauvaux, Jost Lavric, Beverly E. Law, John Lee, Irene Lehner, Kari Lehtinen, Reimo Leppert, Ari Leskinen, Markus Leuenberger, W.H. Leung, Ingeborg Levin, Janne Levula, John Lin, Matthias Lindauer, Anders Lindroth, Mikaell Ottosson Löfvenius, Zoe Loh, Morgan Lopez, Ingrid T. Luijkx, Chris René Lunder, Toshinobu Machida, Ivan Mammarella, Giovanni Manca, Alistair Manning, Andrew Manning, Michal V. Marek, Per Marklund, Josette E. Marrero, Damien Martin, Melissa Yang Martin, Giordane A. Martins, Hidekazu Matsueda, Martine De Maziére, Kathryn McKain, Harro Meijer, Frank Meinhardt, Lynne Merchant, Jean-Marc Metzger, N. Mihalopoulos, Natasha L. Miles, Charles E. Miller, Logan Mitchell, Meelis Mölder, Vanessa Monteiro, Stephen Montzka, Fred Moore, Heiko Moossen, Eric Morgan, Josep-Anton Morgui, Shinji Morimoto, Jennifer Müller-Williams, J. William Munger, David Munro, Mathew Mutuku, Cathrine Lund Myhre, Shin-Ichiro Nakaoka, Jaroslaw Necki, Sally Newman, Sylvia Nichol, Euan Nisbet, Yosuke Niwa, David Murithi Njiru, Steffen Manfred Noe, Florian Obersteiner, Simon O'Doherty, Bill Paplawsky, Caroline L. Parworth, Jeff Peischl, Olli Peltola, Wouter Peters, Carole Philippon, Salvatore Piacentino, Jean-Marc Pichon, Penelope Pickers, Steve Piper, Joseph Pitt, Christian Plass-Dülmer, Stephen Matthew Platt, Steve Prinzivalli, Michel Ramonet, Ramon Ramos, Enrique Reyes-Sanchez, Scott J. Richardson, Louis-Jeremy Rigouleau, Haris Riris, Pedro P. Rivas, Michael Rothe, Yves-Alain Roulet, Thomas Ryerson, Ju-Mee Ryoo, Maryann Sargent, Motoki Sasakawa, Bert Scheeren, Martina Schmidt, Tanja Schuck, Marcus Schumacher, Jennifer Seibel, Thomas Seifert, Mahesh Kumar Sha, Paul Shepson, Michael Shook, Christopher D. Sloop, Paul D. Smith, Lise Lotte Sørensen, Gerard Spain, David Steger, Martin Steinbacher, Britton Stephens, Colm Sweeney, Risto Taipale, Shinya Takatsuji, Kirk Thoning, Helder Timas, Margaret Torn, Pamela Trisolino, Jocelyn Turnbull, Pim van den Bulk, Danielle van Dinther, Alex Vermeulen, Brian Viner, Gabriela Vitkova, Stephen Walker, Andrew Watson, Ray Weiss, Dietmar Weyrauch, Steven C. Wofsy, Justin Worsey, D


Krol et al. (2005) is

> M. Krol, S. Houweling, B. Bregman, M. van den Broek, A. Segers, P. van Velthoven, W. Peters, F. Den- tener, and P. Bergamaschi. The two-way nested global chemistry-transport zoom model TM5: algorithm and applications. Atmospheric Chemistry and Physics, 5:417–432, 2005.


Peiro et al. (2022) is

> H. Peiro, S. Crowell, A. Schuh, D. F. Baker, C. O’Dell, A. R. Jacobson, F. Chevallier, J. Liu, A. El- dering, D. Crisp, F. Deng, B. Weir, S. Basu, M. S. Johnson, S. Philip, and I. Baker. Four years of global carbon cycle observed from the Orbiting Carbon Observatory 2 (OCO-2) version 9 and in situ data and comparison to OCO-2 version 7. Atmospheric Chemistry and Physics, 22(2):1097–1130, 2022. doi:10.5194/acp-22-1097-2022.

Schuldt et al. (2024) is:

> Kenneth N. Schuldt, Andrew R. Jacobson, Tuula Aalto, Arlyn Andrews, Francesco Apadula, Sabrina Arnold, Peter Bakwin, Jakub Bartyzel, Peter Bergamaschi, Tobias Biermann, Sebastien C. Biraud, Pierre-Eric Blanc, Lukas Bäni, Francescopiero Calzolari, Huilin Chen, Lukasz Chmura, Aurelie Colomb, Lino Condori, Franz Conen, Sébastien Conil, Cédric Couret, Paolo Cristofanelli, Emilio Cuevas, Martine De Mazière, Stephan De Wekker, Julian Della Coletta, Marc Delmotte, Tatiana Di Iorio, Michael Elsasser, Lukas Emmenegger, Marc L. Fischer, Grant Forster, Arnoud Frumau, Marta Fuente-Lastra, Michal Galkowski, Francois Gheusi, Samuel Hammer, Juha Hatakka, Michal Heliasz, Daniela Heltai, Arjan Hensen, Christian Hermans, Ove Hermansen, Antje Hoheisel, Jutta Holst, Daniel A. Jaffe, Anna Karion, Victor Kazan, Petri Keronen, Tobias Kneuer, Pasi Kolari, Katerina Kominkova, Paul B. Krummel, Dagmar Kubistin, Nicolas Kumps, Xin Lan, Ray L. Langenfelds, Andrea Lanza, Olivier Laurent, Tuomas Laurila, John Lee, Irene Lehner, Kari Lehtinen, Ari Leskinen, Markus Leuenberger, Ingeborg Levin, Janne Levula, Matthias Lindauer, Anders Lindroth, Zoe M. Loh, Morgan Lopez, Chris R. Lunder, Mikaell O. Löfvenius, Ivan Mammarella, Giovanni Manca, Andrew Manning, Alistair Manning, Michal V. Marek, Per Marklund, Kathryn McKain, Harro Meijer, Frank Meinhardt, Jean-Marc Metzger, Charles E. Miller, John B. Miller, Cathrine L. Myhre, Meelis Mölder, Jennifer Müller-Williams, Jaroslaw Necki, Simon O\'Doherty, Olli Peltola, Carole Philippon, Salvatore Piacentino, Jean M. Pichon, Penelope Pickers, Joseph Pitt, Christian Plass-Dülmer, Stephen M. Platt, Michel Ramonet, Ramon Ramos, Enrique Reyes-Sanchez, Louis-Jeremy Rigouleau, Pedro P. Rivas, Yves-Alain Roulet, Bert Scheeren, Martina Schmidt, Marcus Schumacher, Mahesh K. Sha, Christopher D. Sloop, Paul D. Smith, David Steger, Martin Steinbacher, Colm Sweeney, Lise L. Sørensen, Risto Taipale, Pieter Tans, Kirk Thoning, Pamela Trisolino, Jocelyn Turnbull, Alex Vermeulen, Brian Viner, Gabriela Vitkova, Dietmar Weyrauch, Doug Worthy, Irène Xueref-Remy, Dickon Young, Camille Yver-Kwok, Miroslaw Zimnoch, Alcide G. di Sarra, Danielle van Dinther, Pim van den Bulk; Multi-laboratory compilation of atmospheric carbon dioxide data for the period 2023-2024; obspack_co2_1_NRT_v9.2_2024-03-25; NOAA Earth System Research Laboratory, Global Monitoring Laboratory. http://doi.org/10.25925/20240215.