Methane flux measurements from coastal wetlands on the Kenai Peninsula
The methane (CH4) flux was measured during a field campaign in August 2021 on the Kenai Peninsula, Alaska. We chose locations in coastal wetlands along transects to cover a gradient from freshwater flooded into tidal, saltwater flooded wetlands. In total, we measured at 27 different locations includ...
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Format: | Dataset |
Language: | English |
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PANGAEA
2024
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Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.960156 https://doi.org/10.1594/PANGAEA.960156 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.960156 |
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openpolar |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AK-Land_2021_SAlaska AK-Land_2021_SAlaska_KEN21-T1-1 AK-Land_2021_SAlaska_KEN21-T1-2 AK-Land_2021_SAlaska_KEN21-T1-3 AK-Land_2021_SAlaska_KEN21-T1-4 AK-Land_2021_SAlaska_KEN21-T1-5 AK-Land_2021_SAlaska_KEN21-T1-6 AK-Land_2021_SAlaska_KEN21-T1-7 AK-Land_2021_SAlaska_KEN21-T1-8A AK-Land_2021_SAlaska_KEN21-T1-8B AK-Land_2021_SAlaska_KEN21-T1-8C AK-Land_2021_SAlaska_KEN21-T2-10 AK-Land_2021_SAlaska_KEN21-T2-11 AK-Land_2021_SAlaska_KEN21-T2-9 AK-Land_2021_SAlaska_KEN21-T3-1 AK-Land_2021_SAlaska_KEN21-T3-2 AK-Land_2021_SAlaska_KEN21-T3-3 AK-Land_2021_SAlaska_KEN21-T3-4 AK-Land_2021_SAlaska_KEN21-T3-5 AK-Land_2021_SAlaska_KEN21-T3-6 AK-Land_2021_SAlaska_KEN21-T3-7 AK-Land_2021_SAlaska_KEN21-T4-1 AK-Land_2021_SAlaska_KEN21-T4-2 AK-Land_2021_SAlaska_KEN21-T4-21 AK-Land_2021_SAlaska_KEN21-T4-3 AK-Land_2021_SAlaska_KEN21-T4-4 AK-Land_2021_SAlaska_KEN21-T4-5 AK-Land_2021_SAlaska_KEN21-T4-6 Analytical method Area Area/locality AWI Arctic Land Expedition chamber measurements Class Coefficient of determination Comment DATE/TIME Event label Flux FluxWIN Greenhouse Gas Analyzer LosGatos KEN21-T1-1 KEN21-T1-2 KEN21-T1-3 KEN21-T1-4 KEN21-T1-5 KEN21-T1-6 KEN21-T1-7 KEN21-T1-8A |
spellingShingle |
AK-Land_2021_SAlaska AK-Land_2021_SAlaska_KEN21-T1-1 AK-Land_2021_SAlaska_KEN21-T1-2 AK-Land_2021_SAlaska_KEN21-T1-3 AK-Land_2021_SAlaska_KEN21-T1-4 AK-Land_2021_SAlaska_KEN21-T1-5 AK-Land_2021_SAlaska_KEN21-T1-6 AK-Land_2021_SAlaska_KEN21-T1-7 AK-Land_2021_SAlaska_KEN21-T1-8A AK-Land_2021_SAlaska_KEN21-T1-8B AK-Land_2021_SAlaska_KEN21-T1-8C AK-Land_2021_SAlaska_KEN21-T2-10 AK-Land_2021_SAlaska_KEN21-T2-11 AK-Land_2021_SAlaska_KEN21-T2-9 AK-Land_2021_SAlaska_KEN21-T3-1 AK-Land_2021_SAlaska_KEN21-T3-2 AK-Land_2021_SAlaska_KEN21-T3-3 AK-Land_2021_SAlaska_KEN21-T3-4 AK-Land_2021_SAlaska_KEN21-T3-5 AK-Land_2021_SAlaska_KEN21-T3-6 AK-Land_2021_SAlaska_KEN21-T3-7 AK-Land_2021_SAlaska_KEN21-T4-1 AK-Land_2021_SAlaska_KEN21-T4-2 AK-Land_2021_SAlaska_KEN21-T4-21 AK-Land_2021_SAlaska_KEN21-T4-3 AK-Land_2021_SAlaska_KEN21-T4-4 AK-Land_2021_SAlaska_KEN21-T4-5 AK-Land_2021_SAlaska_KEN21-T4-6 Analytical method Area Area/locality AWI Arctic Land Expedition chamber measurements Class Coefficient of determination Comment DATE/TIME Event label Flux FluxWIN Greenhouse Gas Analyzer LosGatos KEN21-T1-1 KEN21-T1-2 KEN21-T1-3 KEN21-T1-4 KEN21-T1-5 KEN21-T1-6 KEN21-T1-7 KEN21-T1-8A Fuchs, Matthias Jones, Miriam C Gowan, Evan J Frolking, Steve Walter Anthony, Katey M Grosse, Guido Jones, Benjamin M O'Donnel, Jonathan Brosius, Laura Susan Treat, Claire C Methane flux measurements from coastal wetlands on the Kenai Peninsula |
topic_facet |
AK-Land_2021_SAlaska AK-Land_2021_SAlaska_KEN21-T1-1 AK-Land_2021_SAlaska_KEN21-T1-2 AK-Land_2021_SAlaska_KEN21-T1-3 AK-Land_2021_SAlaska_KEN21-T1-4 AK-Land_2021_SAlaska_KEN21-T1-5 AK-Land_2021_SAlaska_KEN21-T1-6 AK-Land_2021_SAlaska_KEN21-T1-7 AK-Land_2021_SAlaska_KEN21-T1-8A AK-Land_2021_SAlaska_KEN21-T1-8B AK-Land_2021_SAlaska_KEN21-T1-8C AK-Land_2021_SAlaska_KEN21-T2-10 AK-Land_2021_SAlaska_KEN21-T2-11 AK-Land_2021_SAlaska_KEN21-T2-9 AK-Land_2021_SAlaska_KEN21-T3-1 AK-Land_2021_SAlaska_KEN21-T3-2 AK-Land_2021_SAlaska_KEN21-T3-3 AK-Land_2021_SAlaska_KEN21-T3-4 AK-Land_2021_SAlaska_KEN21-T3-5 AK-Land_2021_SAlaska_KEN21-T3-6 AK-Land_2021_SAlaska_KEN21-T3-7 AK-Land_2021_SAlaska_KEN21-T4-1 AK-Land_2021_SAlaska_KEN21-T4-2 AK-Land_2021_SAlaska_KEN21-T4-21 AK-Land_2021_SAlaska_KEN21-T4-3 AK-Land_2021_SAlaska_KEN21-T4-4 AK-Land_2021_SAlaska_KEN21-T4-5 AK-Land_2021_SAlaska_KEN21-T4-6 Analytical method Area Area/locality AWI Arctic Land Expedition chamber measurements Class Coefficient of determination Comment DATE/TIME Event label Flux FluxWIN Greenhouse Gas Analyzer LosGatos KEN21-T1-1 KEN21-T1-2 KEN21-T1-3 KEN21-T1-4 KEN21-T1-5 KEN21-T1-6 KEN21-T1-7 KEN21-T1-8A |
description |
The methane (CH4) flux was measured during a field campaign in August 2021 on the Kenai Peninsula, Alaska. We chose locations in coastal wetlands along transects to cover a gradient from freshwater flooded into tidal, saltwater flooded wetlands. In total, we measured at 27 different locations including saltwater tidal regularly flooded bare grounds, temporarily irregularly flooded, as well as seasonally flooded, vegetated coastal wetlands. Flux measurements were made with a micro-portable LosGatos greenhouse gas analyzer (LosGatos Research) and a light-weight custom-made bucket chamber consisting of non-transparent PVC (diameter = 26 cm, volume ~ 19,000 cm3). We chose this small, lightweight equipment in order to be highly mobile in muddy, shrubby terrain and measure at field sites which were not easy to access. At each site we measured three replicates for 7 to 10 minutes, described the vegetation cover (if present), and measured the chamber and air temperature. The bucket chamber was equipped with a venting tube and a small fan to have well-mixed conditions in the chamber. The CH4 flux (in mg CH4 m-2 h-1) for each replicate measurement was calculated based on the volume and temperature of the bucket chamber, and the ideal gas law. We manually removed the first 30 sec of each measurement, because of potential disturbance while placing the bucket chamber on the site (we did not use pre-installed collars). Fluxes were calculated by applying a linear regression to the CH4 concentration and were given in mg CH4 m-2 h-1. The r squared was used to determine the quality of the linear regression. Fluxes that had a linear regression with a r squared below 0.9 were discarded. However, we did not want to exclude all the near-zero measurements as these indicate important data as well (no CH4 fluxes). Therefore, all measurements, which were below the precision of the greenhouse gas analyzer of 0.5 ppb (~0.44 mg CH4 m-2 h-1, depending on chamber volume) were included in the analysis as zero fluxes. In a final step, we ... |
format |
Dataset |
author |
Fuchs, Matthias Jones, Miriam C Gowan, Evan J Frolking, Steve Walter Anthony, Katey M Grosse, Guido Jones, Benjamin M O'Donnel, Jonathan Brosius, Laura Susan Treat, Claire C |
author_facet |
Fuchs, Matthias Jones, Miriam C Gowan, Evan J Frolking, Steve Walter Anthony, Katey M Grosse, Guido Jones, Benjamin M O'Donnel, Jonathan Brosius, Laura Susan Treat, Claire C |
author_sort |
Fuchs, Matthias |
title |
Methane flux measurements from coastal wetlands on the Kenai Peninsula |
title_short |
Methane flux measurements from coastal wetlands on the Kenai Peninsula |
title_full |
Methane flux measurements from coastal wetlands on the Kenai Peninsula |
title_fullStr |
Methane flux measurements from coastal wetlands on the Kenai Peninsula |
title_full_unstemmed |
Methane flux measurements from coastal wetlands on the Kenai Peninsula |
title_sort |
methane flux measurements from coastal wetlands on the kenai peninsula |
publisher |
PANGAEA |
publishDate |
2024 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.960156 https://doi.org/10.1594/PANGAEA.960156 |
op_coverage |
MEDIAN LATITUDE: 60.537113 * MEDIAN LONGITUDE: -151.215966 * SOUTH-BOUND LATITUDE: 60.523670 * WEST-BOUND LONGITUDE: -151.266890 * NORTH-BOUND LATITUDE: 60.546660 * EAST-BOUND LONGITUDE: -151.186070 * DATE/TIME START: 2021-08-04T00:00:00 * DATE/TIME END: 2021-08-24T00:00:00 |
long_lat |
ENVELOPE(-151.266890,-151.186070,60.546660,60.523670) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_relation |
Fuchs, Matthias; Jones, Miriam C; Gowan, Evan J; Frolking, Steve; Walter Anthony, Katey M; Grosse, Guido; Jones, Benjamin M; O'Donnell, Jonathan A; Brosius, Laura Susan; Treat, Claire C (2024): Methane flux from Beringian coastal wetlands for the past 20,000 years. Quaternary Science Reviews, 344, 108976, https://doi.org/10.1016/j.quascirev.2024.108976 https://doi.pangaea.de/10.1594/PANGAEA.960156 https://doi.org/10.1594/PANGAEA.960156 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.96015610.1016/j.quascirev.2024.108976 |
_version_ |
1812811877057560576 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.960156 2024-10-13T14:05:50+00:00 Methane flux measurements from coastal wetlands on the Kenai Peninsula Fuchs, Matthias Jones, Miriam C Gowan, Evan J Frolking, Steve Walter Anthony, Katey M Grosse, Guido Jones, Benjamin M O'Donnel, Jonathan Brosius, Laura Susan Treat, Claire C MEDIAN LATITUDE: 60.537113 * MEDIAN LONGITUDE: -151.215966 * SOUTH-BOUND LATITUDE: 60.523670 * WEST-BOUND LONGITUDE: -151.266890 * NORTH-BOUND LATITUDE: 60.546660 * EAST-BOUND LONGITUDE: -151.186070 * DATE/TIME START: 2021-08-04T00:00:00 * DATE/TIME END: 2021-08-24T00:00:00 2024 text/tab-separated-values, 2061 data points https://doi.pangaea.de/10.1594/PANGAEA.960156 https://doi.org/10.1594/PANGAEA.960156 en eng PANGAEA Fuchs, Matthias; Jones, Miriam C; Gowan, Evan J; Frolking, Steve; Walter Anthony, Katey M; Grosse, Guido; Jones, Benjamin M; O'Donnell, Jonathan A; Brosius, Laura Susan; Treat, Claire C (2024): Methane flux from Beringian coastal wetlands for the past 20,000 years. Quaternary Science Reviews, 344, 108976, https://doi.org/10.1016/j.quascirev.2024.108976 https://doi.pangaea.de/10.1594/PANGAEA.960156 https://doi.org/10.1594/PANGAEA.960156 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess AK-Land_2021_SAlaska AK-Land_2021_SAlaska_KEN21-T1-1 AK-Land_2021_SAlaska_KEN21-T1-2 AK-Land_2021_SAlaska_KEN21-T1-3 AK-Land_2021_SAlaska_KEN21-T1-4 AK-Land_2021_SAlaska_KEN21-T1-5 AK-Land_2021_SAlaska_KEN21-T1-6 AK-Land_2021_SAlaska_KEN21-T1-7 AK-Land_2021_SAlaska_KEN21-T1-8A AK-Land_2021_SAlaska_KEN21-T1-8B AK-Land_2021_SAlaska_KEN21-T1-8C AK-Land_2021_SAlaska_KEN21-T2-10 AK-Land_2021_SAlaska_KEN21-T2-11 AK-Land_2021_SAlaska_KEN21-T2-9 AK-Land_2021_SAlaska_KEN21-T3-1 AK-Land_2021_SAlaska_KEN21-T3-2 AK-Land_2021_SAlaska_KEN21-T3-3 AK-Land_2021_SAlaska_KEN21-T3-4 AK-Land_2021_SAlaska_KEN21-T3-5 AK-Land_2021_SAlaska_KEN21-T3-6 AK-Land_2021_SAlaska_KEN21-T3-7 AK-Land_2021_SAlaska_KEN21-T4-1 AK-Land_2021_SAlaska_KEN21-T4-2 AK-Land_2021_SAlaska_KEN21-T4-21 AK-Land_2021_SAlaska_KEN21-T4-3 AK-Land_2021_SAlaska_KEN21-T4-4 AK-Land_2021_SAlaska_KEN21-T4-5 AK-Land_2021_SAlaska_KEN21-T4-6 Analytical method Area Area/locality AWI Arctic Land Expedition chamber measurements Class Coefficient of determination Comment DATE/TIME Event label Flux FluxWIN Greenhouse Gas Analyzer LosGatos KEN21-T1-1 KEN21-T1-2 KEN21-T1-3 KEN21-T1-4 KEN21-T1-5 KEN21-T1-6 KEN21-T1-7 KEN21-T1-8A dataset 2024 ftpangaea https://doi.org/10.1594/PANGAEA.96015610.1016/j.quascirev.2024.108976 2024-10-02T00:42:44Z The methane (CH4) flux was measured during a field campaign in August 2021 on the Kenai Peninsula, Alaska. We chose locations in coastal wetlands along transects to cover a gradient from freshwater flooded into tidal, saltwater flooded wetlands. In total, we measured at 27 different locations including saltwater tidal regularly flooded bare grounds, temporarily irregularly flooded, as well as seasonally flooded, vegetated coastal wetlands. Flux measurements were made with a micro-portable LosGatos greenhouse gas analyzer (LosGatos Research) and a light-weight custom-made bucket chamber consisting of non-transparent PVC (diameter = 26 cm, volume ~ 19,000 cm3). We chose this small, lightweight equipment in order to be highly mobile in muddy, shrubby terrain and measure at field sites which were not easy to access. At each site we measured three replicates for 7 to 10 minutes, described the vegetation cover (if present), and measured the chamber and air temperature. The bucket chamber was equipped with a venting tube and a small fan to have well-mixed conditions in the chamber. The CH4 flux (in mg CH4 m-2 h-1) for each replicate measurement was calculated based on the volume and temperature of the bucket chamber, and the ideal gas law. We manually removed the first 30 sec of each measurement, because of potential disturbance while placing the bucket chamber on the site (we did not use pre-installed collars). Fluxes were calculated by applying a linear regression to the CH4 concentration and were given in mg CH4 m-2 h-1. The r squared was used to determine the quality of the linear regression. Fluxes that had a linear regression with a r squared below 0.9 were discarded. However, we did not want to exclude all the near-zero measurements as these indicate important data as well (no CH4 fluxes). Therefore, all measurements, which were below the precision of the greenhouse gas analyzer of 0.5 ppb (~0.44 mg CH4 m-2 h-1, depending on chamber volume) were included in the analysis as zero fluxes. In a final step, we ... Dataset Arctic Alaska PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(-151.266890,-151.186070,60.546660,60.523670) |