English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Gap-filling eddy covariance methane fluxes: Comparison of machine learning model predictions and uncertainties at FLUXNET-CH4 wetlands

Authors

Irvin,  Jeremy
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Zhou,  Sharon
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

McNicol,  Gavin
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Lu,  Fred
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Liu,  Vincent
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Fluet-Chouinard,  Etienne
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Ouyang,  Zutao
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Knox,  Sara Helen
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Lucas-Moffat,  Antje
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Trotta,  Carlo
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Papale,  Dario
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Vitale,  Domenico
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Mammarella,  Ivan
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Alekseychik,  Pavel
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Aurela,  Mika
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Avati,  Anand
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Baldocchi,  Dennis
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Bansal,  Sheel
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Bohrer,  Gil
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Campbell,  David I
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Chen,  Jiquan
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Chu,  Housen
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Dalmagro,  Higo J
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Delwiche,  Kyle B
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Desai,  Ankur R
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Euskirchen,  Eugenie
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Feron,  Sarah
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Goeckede,  Mathias
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Heimann,  Martin
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Helbig,  Manuel
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Helfter,  Carole
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Hemes,  Kyle S
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Hirano,  Takashi
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Iwata,  Hiroki
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Jurasinski,  Gerald
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

/persons/resource/akalhori

Kalhori,  Aram       
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
TERENO, Deutsches GeoForschungsZentrum;

Kondrich,  Andrew
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Lai,  Derrick YF
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Lohila,  Annalea
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Malhotra,  Avni
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Merbold,  Lutz
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Mitra,  Bhaskar
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Ng,  Andrew
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Nilsson,  Mats B
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Noormets,  Asko
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Peichl,  Matthias
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Rey-Sanchez,  A. Camilo
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Richardson,  Andrew D
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Runkle,  Benjamin RK
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Schäfer,  Karina VR
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Sonnentag,  Oliver
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Stuart-Haëntjens,  Ellen
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Sturtevant,  Cove
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Ueyama,  Masahito
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Valach,  Alex C
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Vargas,  Rodrigo
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Vourlitis,  George L
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Ward,  Eric J
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Wong,  Guan Xhuan
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Zona,  Donatella
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Alberto,  Ma. Carmelita R
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Billesbach,  David P
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Celis,  Gerardo
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Dolman,  Han
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Friborg,  Thomas
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Fuchs,  Kathrin
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Gogo,  Sébastien
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Gondwe,  Mangaliso J
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Goodrich,  Jordan P
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

/persons/resource/pgottsch

Gottschalk,  Pia       
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
TERENO, Deutsches GeoForschungsZentrum;

Hörtnagl,  Lukas
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Jacotot,  Adrien
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Koebsch,  Franziska
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Kasak,  Kuno
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Maier,  Regine
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Morin,  Timothy H
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Nemitz,  Eiko
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Oechel,  Walter C
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Oikawa,  Patricia Y
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Ono,  Keisuke
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

/persons/resource/tsachs

Sachs,  T.
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
TERENO, Deutsches GeoForschungsZentrum;

Sakabe,  Ayaka
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Schuur,  Edward A
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Shortt,  Robert
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Sullivan,  Ryan C
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Szutu,  Daphne J
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Tuittila,  Eeva-Stiina
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Varlagin,  Andrej
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Verfaillie,  Joeseph G
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

/persons/resource/cwille

Wille,  C.
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
TERENO, Deutsches GeoForschungsZentrum;

Windham-Myers,  Lisamarie
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Poulter,  Benjamin
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

Jackson,  Robert B
External Organizations;
TERENO, Deutsches GeoForschungsZentrum;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Irvin, J., Zhou, S., McNicol, G., Lu, F., Liu, V., Fluet-Chouinard, E., Ouyang, Z., Knox, S. H., Lucas-Moffat, A., Trotta, C., Papale, D., Vitale, D., Mammarella, I., Alekseychik, P., Aurela, M., Avati, A., Baldocchi, D., Bansal, S., Bohrer, G., Campbell, D. I., Chen, J., Chu, H., Dalmagro, H. J., Delwiche, K. B., Desai, A. R., Euskirchen, E., Feron, S., Goeckede, M., Heimann, M., Helbig, M., Helfter, C., Hemes, K. S., Hirano, T., Iwata, H., Jurasinski, G., Kalhori, A., Kondrich, A., Lai, D. Y., Lohila, A., Malhotra, A., Merbold, L., Mitra, B., Ng, A., Nilsson, M. B., Noormets, A., Peichl, M., Rey-Sanchez, A. C., Richardson, A. D., Runkle, B. R., Schäfer, K. V., Sonnentag, O., Stuart-Haëntjens, E., Sturtevant, C., Ueyama, M., Valach, A. C., Vargas, R., Vourlitis, G. L., Ward, E. J., Wong, G. X., Zona, D., Alberto, M. C. R., Billesbach, D. P., Celis, G., Dolman, H., Friborg, T., Fuchs, K., Gogo, S., Gondwe, M. J., Goodrich, J. P., Gottschalk, P., Hörtnagl, L., Jacotot, A., Koebsch, F., Kasak, K., Maier, R., Morin, T. H., Nemitz, E., Oechel, W. C., Oikawa, P. Y., Ono, K., Sachs, T., Sakabe, A., Schuur, E. A., Shortt, R., Sullivan, R. C., Szutu, D. J., Tuittila, E.-S., Varlagin, A., Verfaillie, J. G., Wille, C., Windham-Myers, L., Poulter, B., Jackson, R. B. (2021): Gap-filling eddy covariance methane fluxes: Comparison of machine learning model predictions and uncertainties at FLUXNET-CH4 wetlands. - Agricultural and Forest Meteorology, 308-309, 108528.
https://doi.org/10.1016/j.agrformet.2021.108528


Cite as: https://gfzpublic.gfz.de/pubman/item/item_5007227
Abstract
Time series of wetland methane fluxes measured by eddy covariance require gap-filling to estimate daily, seasonal, and annual emissions. Gap-filling methane fluxes is challenging because of high variability and complex responses to multiple drivers. To date, there is no widely established gap-filling standard for wetland methane fluxes, with regards both to the best model algorithms and predictors. This study synthesizes results of different gap-filling methods systematically applied at 17 wetland sites spanning boreal to tropical regions and including all major wetland classes and two rice paddies. Procedures are proposed for: 1) creating realistic artificial gap scenarios, 2) training and evaluating gap-filling models without overstating performance, and 3) predicting half-hourly methane fluxes and annual emissions with realistic uncertainty estimates. Performance is compared between a conventional method (marginal distribution sampling) and four machine learning algorithms. The conventional method achieved similar median performance as the machine learning models but was worse than the best machine learning models and relatively insensitive to predictor choices. Of the machine learning models, decision tree algorithms performed the best in cross-validation experiments, even with a baseline predictor set, and artificial neural networks showed comparable performance when using all predictors. Soil temperature was frequently the most important predictor whilst water table depth was important at sites with substantial water table fluctuations, highlighting the value of data on wetland soil conditions. Raw gap-filling uncertainties from the machine learning models were underestimated and we propose a method to calibrate uncertainties to observations. The python code for model development, evaluation, and uncertainty estimation is publicly available. This study outlines a modular and robust machine learning workflow and makes recommendations for, and evaluates an improved baseline of, methane gap-filling models that can be implemented in multi-site syntheses or standardized products from regional and global flux networks (e.g., FLUXNET).