For GCRG Only

GCRG awarded NSF grant towards the annual budget of CH4 emissions from tundra ecosystem across a latitudinal gradient

GCRG was awarded a grant by the US National Science Foundation for the proposal, “Methane loss from the Arctic: towards an annual budget of CH4 emissions from tundra ecosystem across a latitudinal gradient” (PI: Donatella Zona). In this research project we will measure CO2 and CH4 fluxes across a latitudinal transect in the arctic tundra . . . → Read More: GCRG awarded NSF grant towards the annual budget of CH4 emissions from tundra ecosystem across a latitudinal gradient

Assessing the spatial variability in peak season CO 2 exchange characteristics across the Arctic tundra using a light response curve parameterization

Assessing the spatial variability in peak season CO 2 exchange characteristics across the Arctic tundra using a light response curve parameterization.

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Dr. Oechel was identified as some of the “World’s Most Influential Scientific Minds” by Thomson Reuters”

Oechel was ranked as a top influencer in the category of Agricultural Sciences for his long standing work on climate change as a plant eco-physiologist and systems ecologist.

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Expanding Spatial and Temporal Coverage of Arctic CH4 and CO2 Fluxes

Expanding Spatial and Temporal Coverage of Arctic CH4 and CO2 Fluxes

AGU Fall Meeting 2013 Presented at American Geophysical Union, 9-13th of December,2013, San Francisco, California. Authors: Patrick Murphy, Walter Oechel, Virginie Moreaux, Salvatore Losacco, Donatella Zona.

Carbon storage and exchange in Arctic ecosystems is the subject of intensive study focused on determining rates, . . . → Read More: Expanding Spatial and Temporal Coverage of Arctic CH4 and CO2 Fluxes

The effects of elevated CO2, climate variability, and fire on the functioning of the chaparral of Southern California

The effects of elevated CO2, climate variability, and fire on the functioning of the chaparral of Southern California

Presented at MEDECOS XII Conference, July 6-9, 2011, Los Angeles, CA.

Oechel, Walter1,2, Alessandra Rossi1, Patrick Murphy1, John Kim3, Tom Bell1, Hongyan Luo4, David Lipson5

1Global Change Research Group, San Diego State University, San Diego, CA . . . → Read More: The effects of elevated CO2, climate variability, and fire on the functioning of the chaparral of Southern California

Air-sea CO2 exchange of beach and near-coastal waters of the Chukchi Sea near Barrow, Alaska

Authors: Ikawa, H.; Oechel, WC Source: CONTINENTAL SHELF RESEARCH  Volume: 31   Issue: 13   Pages: 1357-1364   DOI: 10.1016/j.csr.2011.05.012   Published: SEP 1 2011

Abstract: Partial pressure of CO2 in equilibrium with sample water (pCO2) for the coastal water in the Chukchi Sea was continuously observed in summer, 2008. Average daily CO2 flux calculated from the pCO2 and gas transfer coefficients ranged from -0.144 to -0.0701 g C . . . → Read More: Air-sea CO2 exchange of beach and near-coastal waters of the Chukchi Sea near Barrow, Alaska

GCRG on LI-COR NewsLine: Measure Methane Where it Matters: Part II, Barrow, Alaska

“Although many scientists agree that the current warming trend is likely to continue, it is unknown whether a warmer climate will turn the Arctic Coastal Plain from a sink to a source of greenhouse gases…. Cove Sturtevant and Dr. Walt Oechel from San Diego State University in California are addressing some of these questions . . . → Read More: GCRG on LI-COR NewsLine: Measure Methane Where it Matters: Part II, Barrow, Alaska

General Tower Maintenance Protocol

Tower maintenance should be logged in the GCRG database, which has a web interface. Go to the old website: http://gcrg.sdsu.edu/old Log In -> Tower Logs -> SO YS

Calibration files (the .i75 file you can export from the LICOR7500 pc software) should be put through LI7500 Config Parser (on old website) first then copy-pasted . . . → Read More: General Tower Maintenance Protocol

Sky Oaks Young Stand Tower Computer Notes

Remote Desktop 172.23.49.149 (reachable only from a campus computer) login: [check GCRG office] pwd: [check GCRG office]

Start -> All Programs -> Startup shows 4 programs that start automatically when computer starts

Winflux software + config c:\winflux config file is called “setup” Look inside setup to see where output folders are

Loggernet “Setup” shows . . . → Read More: Sky Oaks Young Stand Tower Computer Notes

Mr-SPOC: General Usage

Mr-SPOC is used to store tower data, both raw data collected at real-time and processed data. It also is used to store meta-data (i.e., information about the data, including information about the towers). It is an FTP server with HTTP (web) interface for administration. It’s physically located in the lab.

Typically, an FTP software . . . → Read More: Mr-SPOC: General Usage