Lloyd Swiftl

USDA Forest Service Southern Research Station Coweeta Hydrologic Laboratory 3160 Coweeta Lab Road Otto North Carolina 28763 USA

(828) 369-6768 lswift@sparc.ecology.uga.edu http://coweeta.ecology.uga.edu This dataset contains base-line climatic information for the main climate station (CS01) at Coweeta Hydrologic Laboratory in Macon County, North Carolina, USA. The station is operated by the Southern Research Station, Forest Service, USDA. CS01 is also a cooperative station with the National Weather Service. Since May 1963 it has been located in a grassy field NW of the junction of Ball Creek and Shope Fork of Coweeta Creek. Previously CS01 was located about 100m SW of its current location. The current elevation is 685.5m (2249ft) at latitude 35-3-37.21N and longitude 83-25-49.02W. During the 1940s forest regrowth was tolerated up to 150 feet from the station. In August 1949 the larger opening was reestablished. The high elevation precipitation gage is located in a forest opening on Mooney Gap at elevation 1362.6m (4475ft). Observations were made twice a day at 0800 and 1700 through 1957. Beginning in 1958 observations were made at 0900 eastern standard time only. Since March 1968 observations have been made at 0800 EST. All observations of air temperature are made with Hg thermometers and are currently backed up by both replicating chart recorders and electronic data logger observations. Daily maximum temperature observations are recorded as the previous days maximum temperature. When direct observations are not made on holidays and weekends, values are extracted from the chart recorder. Precipitation at CS01 is observed daily whereas precipitation at the high elevation site is observed weekly. Week long totals and weekend/holiday totals are separated into daily amounts using adjacent weighing/recording raingages. Global solar radiation began in July 1960. Radiation is sensed by an Eppley Pyrheliometer and recorded on a Campbell data logger. Some evaporation measurements at CS01 have been made using National Weather Service class A type pans. However, data reported here are derived from a buried pan 36 inches in diameter and 18 inches deep, providing a more representative climatic norm for evaporation. Coweeta LTER Climate air temperature max air temperature minimum air temperature low elevation precipitation global solar radiation high elevation precipitation evaporation Must adhere to the Coweeta LTER Data Policy (See http://coweeta.ecology.uga.edu/webdocs/3/static/datapolicies.html). http://cwt33.ecology.uga.edu/summaries/summary1011.html Climate Station 01 1935-04-01 2005-12-01 Coweeta LTER Information Manager

Institute of Ecology University of Georgia Athens Georgia 30602 USA

(828) 524-2128 Ted Gragson

Institute of Ecology University of Georgia Athens Georgia 30602 USA

tgragson@earthlink.net principalInvestigator James Vose

Institute of Ecology University of Georgia Athens Georgia 30602 USA

jvose@fs.fed.us principalInvestigator Brian Kloeppel

Institute of Ecology University of Georgia Athens Georgia 30602 USA

kloeppel@sparc.ecology.uga.edu principalInvestigator The Coweeta LTER Research Program has evolved since 1980 from a site-based to a site- and region-based project examining the effects of disturbance and environmental gradients on biogeochemical cycling, and the underlying watershed ecosystem processes that regulate and respond to those cycles. The objective for the 2002-2008 research is to advance scientific understanding of the spatial, temporal, and decision-making components of land use and land-use change in the southern Appalachian Mountains over the last 200 years, and forecast patterns into the future 30 years. This will be accomplished by addressing ecological and socioeconomic aspects of land-use change while continuing long-term studies of environmental gradients and natural disturbance regimes. The result will be a more complete understanding of ecological dynamics in the southern Appalachian Mountains that makes possible the development of reasonable forecasts of its future ecological state. | The guiding hypothesis for the proposed research is that the frequency, intensity, and extent of land use represents human decision-making in response to socioeconomic and bio-geophysical conditions with consequences that cascade through ecosystems. The research activities are organized into three initiatives: (1) Characterization of the Socio-Natural Template, (2) Ecosystem Responses to the Socio-Natural Template, and (3) Forecasting Ecosystem Responses to Changes in the Socio-Natural Template. The integrated scientific research will provide both a description as well as an explanation of the underlying causes of land use and the consequences of land-use change for southern Appalachian ecosystems and society. It thus recognizes the complexity of land use as a process and the research needs as defined in the LTER Program and the broader scientific community. National Science Foundation. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. uid=cwt,o=lter,dc=ecoinformatics,dc=org all public read 1011.csv 1011.csv 1 \n \n column , http://cwt33.ecology.uga.edu/data/1011.csv Year Year Year data was collected YYYY . Missing Value Month Month Month when data was collected MM . Missing Value AIRT AIRT monthly mean of daily maximum and daily minimum temperatures celsius real . Missing Value AIRT_MAX AIRT_MAX monthly mean of daily maximum air temperatures celsius real . Missing Value AIRT_MIN AIRT_MIN monthly mean of daily minimum air temperatures celsius real . Missing Value PRECIP_L PRECIP_L monthly total precipitation at CS01 millimiter real . Missing Value SOLAR SOLAR mean daily total global radiation millijoulesPerMeterSquared real . Missing Value PRECIP_H PRECIP_H monthly total precipitation at high elevation site millimeter real . Missing Value EVAP EVAP monthly total evaporation millimeter real . Missing Value