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Source: http://daac.ornl.gov/data/bluangel_harvest/Preparation_for_Archive/LC07_Reservoir_Methane_Emissions.xml
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simpleSaveXMLlength: 12097
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OME_version: Version 4.7.5, Revision Date: 04 Apr 2006
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DTD_version: metadata07.dtd
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Creation_datetime: 20081219 094513
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Creation_IP: 72.170.134.33
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File_revision: 20090120 184129
Team_Information
Investigation_Team
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Team_ID: LC-07 (Melack / Novo)
Investigator
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Name: Lima, Ivan Bergier Tavares de
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Email: ivan@cpap.embrapa.br
Contact_Person
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Name: Lima, Dr. Ivan Bergier T. (for science)
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Email: ivan@cpap.embrapa.br
Contact_Person
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Name: Gastil-Buhl, M. (for data)
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Email: mary@icess.ucsb.edu
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LBA_Science_Component: Land Use and Land Cover
Metadata_Author
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Name: Gastil-Buhl, Mary
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Email: mary@icess.ucsb.edu
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Phone: 805 893-4885
Data_Set_Information
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Data_Set_Title: LBA-ECO LC-07 Methane Releases from two Amazon HydroReservoirs, Brazil: 2000-2001
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Activity: LBA-ECO
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Project: LBA (Large-Scale Biosphere-Atmosphere Experiment in the Amazon)
Site_Information
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Site: Tucurui reservoir, in Eastern Para, north of Maraba
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Region: Tocantins
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Westernmost_Longitude: -49.41667
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Easternmost_Longitude: -49.41667
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Northernmost_Latitude: -4.33333
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Southernmost_Latitude: -4.33333
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Geodetic_Datum: Geodetic Datum not specified
Site_Information
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Site: Rondonia - Porto Velho EMBRAPA
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Region: Rondonia
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Westernmost_Longitude: -63.85355
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Easternmost_Longitude: -63.84105
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Northernmost_Latitude: -8.79095
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Southernmost_Latitude: -8.80345
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Geodetic_Datum: Geodetic Datum not specified
Time_Period
Temporal_Coverage
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Start_Date: 20000601
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End_Date: 20010930
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Temporal_Resolution: Annual
Parameter_Description
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Topic: LAND SURFACE
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Term: GEOCHEMISTRY
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Parameter: METHANE
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Sensor: GC-FID (GAS CHROMATOGRAPH/FLAME IONIZATION DETECTOR)
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Source: CENA-USP, Shimadzu 17A
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Keywords: Amazon
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Keywords: Methane emission
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Keywords: Hydroelectric reservoirs
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Keywords: Isotope analysis
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Description: Biogeochemical distinction of methane emissions to the atmosphere may essentially rely on the surface area and morphometry of Amazon hydroreservoirs. Tucurui (deep) and Samuel (shallow) reservoirs released in average 13.82 +/- 22.94 and 71.19 +/- 107.4 mg CH4 m-2 d-1, respectively. d13C-CH4 values from the sediments to the atmosphere indicate that the deep reservoir has extended methanotrophic layer, oxidizing large quantities of light isotope methane coming from the sediments, while sediment-generated methane can easily evade the shallow reservoir.
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Data_Last_Modified: 20041129
Data_Access_Information
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Data_Set_Status: Final
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Data_Set_Restrictions: Public
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Data_Set_Location: ORNL DAAC
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Data_Center_Contact: mary@icess.ucsb.edu for downloads or ivan@cpap.embrapa.br for science
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Data_Center_URL: http://www.icess.ucsb.edu/LBA/archives/LC07/lima/
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Data_Set_Citation: Lima, I.B.T. 2008. LBA-ECO LC-07 Methane Releases from two Amazon HydroReservoirs, Brazil: 2000-2001. Data set. Available on-line [http://lba.cptec.inpe.br/] from LBA Data and Information System, National Institute for Space Research (INPE/CPTEC), Cachoeira Paulista, Sao Paulo, Brazil.
Data_Set_Link
Data_Set_Link
Poster_Link
Search_Text_Link
Other_Link
Other_Link
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Data_Set_Inventory_ID: LC07_Reservoir_Methane_Emissions
LBA_DIS_Archive
Related_Web_Site
Related_Data_Set
- Data_Set_Title:
- Relationship:
Related_Publication_Information
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Publication_Title: Biogeochemical distinction of methane releases from two Amazon hydroreservoirs
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Publication_Authors: Lima, I.B.T.
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Publication_Abstract: Biogeochemical distinction of methane emissions to the atmosphere may essentially rely on the surface area and morphometry of Amazon hydroreservoirs. Tucurui (deep) and Samuel (shallow) reservoirs released in average 13.82 +/- 22.94 and 71.19 +/- 107.4 mg CH4 m(-2) d(-1), respectively. delta(13)C-CH4 values from the sediments to the atmosphere indicate that the deep reservoir has extended methanotrophic layer, oxidizing large quantities of light isotope methane coming from the sediments, while sediment-generated methane can easily evade the shallow reservoir. (c) 2005 Elsevier Ltd. All rights reserved.
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Publication_Citation: Lima, I.B.T. 2005. Biogeochemical distinction of methane releases from two Amazon hydroreservoirs. Chemosphere 59(11):1697-1702.
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Publication_Keywords: AIR;AMAZON;AREA;ATMOSPHERE;ATMOSPHERIC METHANE;CARBON;CH4;EMISSION;EMISSIONS;FLOODPLAIN;GLOBAL;GLOBAL CHANGE;GREENHOUSE GASES;HYDROELECTRIC DAMS;HYDROELECTRIC RESERVOIRS;ISOTOPE ANALYSIS;ISOTOPIC COMPOSITION;LAKE;LAYER;LIGHT;METHANE;METHANE EMISSION;METHANE EMISSIONS;REMOTE SENSING;SCIENCE;SEDIMENT;SEDIMENTS;SOIL;SURFACE;TEMPERATURE;VALUES;WATER;WETLANDS;
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ISBN_Number: 0045-6535; ISI:000230321500017
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Internal_Pub_ID: 638
Data_Set_Documentation
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Data_Set_Overview: This data set consists of the data used to create the table and three figures in (Lima Chemosphere 2005).
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Data_Characteristics: The data is in an Excel spreadsheet.
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Data_Application_and_Derivation: Application:
This data was used to create a table and three figures in (Lima Chemosphere 2005).
This data has not yet been used in further work.
How might this data be applied? For Amazon methane flux compilation and methane oxidation through Rayleigh models.
Derivation:
The data was derived from concentration and isotope analyses of methane collected.
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Quality_Assessment: for quality assessment, see reference, section 3.
<p> Methane concentration average analytical error was ca. 3 - 5%. </p>
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Data_Acquisition_Materials_and_Methods: Data Acquisition Materials and Methods:
See section 2.2 of reference.
<p>
2.2. Methane fluxes
Static chamber fluxes were estimated on the course of
three field campaigns carried out in June - July 2000, in
June - July 2001 and in September 2001. Methane fluxes
were acquired relatively far from the shoreline in shallow
(<10 m) and deep (>10 m) locations of both Tucuru
and Samuel reservoirs. Each field campaign accomplished
four days of sampling by reservoir. It was obtained
eight methane fluxes per day using two floating
static chambers. By averaging two simultaneous chamber
fluxes, four mean methane fluxes per day were estimated,
gathering a maximum of 16 mean methane
fluxes by reservoir for each of the three field campaigns.
Each chamber has a headspace volume of 36000 cm3
and an exchange area of 1000 cm2. Both chambers were
covered with reflective material to minimize the increase
of inside temperature during deployments of 1 h. Samples
were pumped every 15 min from 5-m length and
3-mm inner diameter nylon tubing with the aid of 60-
ml plastic syringes adapted with luer-lock valves. Gas
samples were then stored by needle injection in 15-ml
pre-evacuated glass flasks sealed with butyl rubber stoppers
for later concentration determination.
Methane concentration was determined with a flame
ionization detector (FID) in a Shimadzu 17A gas chromatograph
(GC). Around ??? ml of gas sample was injected
in the GC system, composed of a system port at
150 ??? C, a 0.53-mm diameter and 30-m length Megabore
column at 45 ???C, and a FID at 200 ??? C. Average analytical
error was ca. ???%.
Methane fluxes were calculated by / = (Dc/Dt) ???
(V/A), where Dc/Dt is the rate of methane concentration
change into the chambers. All fluxes / < 0 were discarded
of the analysis, since, in terms of energy conservation,
Dc/Dt < 0 may represent physically improbable
fluxes. Methane bubbles eventually intercepted some
time series. When bubbles interfered in the beginning
of the deployment, the disturbance created a negative
rate, due to mixing within the chamber and thus dilution
of the bubbles close to the atmospheric methane concentration.
For those cases, methane fluxes were also
discarded.</p>
<p> Method is further discussed in Lima 2005, Section 2. </p>
- Data_Access:
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References: References documenting this dataset:
Lima IBT. (2005) Blogeochemical distinction of methane releases from two Amazon hydroreservoirs. Chemosphere, 59, 1697-1702.
References citing this dataset:
Ramos FM, Lima IBT, Rosa RR, et al. (2006) Extreme event dynamics in methane ebullition fluxes from tropical reservoirs. Geophysical Research Letters, 33(21), L21404.
Bambace LAW, Ramos FM, Lima IBT, Rosa RR. (2007) Mitigation and recovery of methane emissions from tropical hydroelectric dams. Energy, 32(6), 1038-1046.
Lima IBT, Ramos FM, Bambace LAW, Rosa RR. (2008) Methane Emissions from Large Dams as Renewable Energy Resources: A Developing Nation Perspective. Mitigation and Adaptation Strategies for Global Change, 13(2), 193-206.