Gene E. Likens Institute of Ecosystem Studies Hubbard Brook Experimental Forest LTER

U.S. Forest Service 271 Mast Rd. Durham NH 03824 USA

603-868-7643 603-868-7604 http://www.hubbardbrook.org stream watershed flow chemistry pH calcium magnesium potassium sodium aluminum ammonium sulfate nitrate chloride phosphate silica

Data Access Guidelines for Streamwater Chemistry We are happy to share these data on the chemistry of Hubbard Brook ecosystems. The public dissemination of these data that we have collected is a responsibility that we take very seriously. As stewards of these long-term data, our highest priorities are: a. to maintain the integrity of these long-term data; b. to allow adequate time for the analysis, quality assurance, and publication of results by principal investigators; c. to acknowledge properly and responsibly the appropriate funding sources. Therefore, it is HBES policy to make these streamwater data available on this web page five years after the date of collection. Also, in sharing these data with users like yourself, we ask that you adhere to the following guidelines as a matter of common courtesy and ethical responsibility: 1. Please inform us in advance of your interest and plans for use of these data (LikensG@ecostudies.org). 2. The sources of funding used to collect these data must be acknowledged properly. We will provide the appropriate information when we learn what data are being used. 3. We would like to review any manuscripts that utilize extensive amounts (e.g. multiple years) of these data. If data use is extensive, or if these data have not been published previously, it may be appropriate for us to be included as authors on publication that are generated given the additional requirements from us for analysis and interpretation.

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms: 1) Acceptable use. Use of the dataset will be restricted to academic, research, government or other not-for-profit professional purposes. 2) Redistribution. The data and metadata are provided for use by the Data User. The Data User will not redistribute the original Data Set or metadata to others without the explicit permission of the Principal Investigator. 3) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly attribute the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier. Citation example: Holmes, R.T. 2012. Bird Abundances at Hubbard Brook (1969-2010) and on three replicate plots (1986-2000) in the White Mountain National Forest. Durham, NH. Hubbard Brook Data Archive [Database]. http://hubbardbrook.org/data/dataset.php?id=81 (23 July 2012) 4) Acknowledgment: The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed to its content. Acknowledgments should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. Acknowledgment example: Data on [topic] were provided by [name of PI] on [date]. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station, Newtown Square, PA. Significant funding for collection of these data was provided by [agency]-[grant number], [agency]-[grant number], etc. 5) Consultation and questions. Data users are strongly encouraged to consult with the Principal Investigator(s) who collected these data for further information. Also, when appropriate, Data Users should consider including the Principal Investigator as a collaborator and/or co-author in the use of these data. 6) Notification. The Data User will notify the Principal Investigator of any publication or derivative work based on the Data Set. The Data User will also provide the Principal Investigator and/or the administrator of the Hubbard Brook Ecosystem Study with a pdf or two reprints of any publication(s) resulting from use of the Data Set. 7) Disclaimer. While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation. 8) Terms of Agreement. By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.

http://www.hubbardbrook.org/data/data_policy.php?firstname=metacat&lastname=user&affiliation=Other&view=1&accept=1&comments=none&phone=6035551212&email=none@loopback.com&target=w6-stm.txt HBEF watershed 6 (WS-6); this watershed is the biogeochemical reference catchment at HBEF. Collected from a waterfall 5 to 10m above the stream gauging station at HBEF WS-6. -71.735641 -71.735641 43.949940 43.949940 Month Year June 1963 Ongoing Ongoing Gene Likens Institute of Ecosystem Studies

Millbrook NY 12545 USA

(845)-677-5343 LikensG@ecostudies.org

Samples are collected in acid-washed, deionized water-rinsed, polyethylene bottles, from a small waterfall above the stream gauging station, to avoid contamination from ponded debris or weir construction materials. The normal sampling interval is weekly, with more frequent samples taken at times of increased discharge. At low flow summer (drought) conditions, samples may be taken with a clean polyethylene syringe, from undisturbed standing pools in the stream channel. Daily export values (in g/ha-mo) are derived by multiplying daily streamflow amounts (in mm) for watershed 6, by the concentration of solutes (in mg/L) in the WS-6 sample taken on that day. For periods between samples, the average chemistry of the previous and next discrete sample is used for a daily concentration value. Measured and estimated daily values are summed to produce monthly export, and export divided by total monthly streamflow to produce volume-weighted, average monthly concentrations for streamwater at HBEF WS-6.

G.E. Likens F.H. Bormann N.M. Johnson R.S. Pierce 1967 english

Ecology 48 5 772-785

D.W. Fisher A.W. Gambell likens bormann 1968

Water Resour. Res. 4 5 1115-1126

likens bormann pierce J.S. Eaton johnson 1977 Springer-Verlag New York Inc. 146 pp. C.A. Federer L.D. Flynn C.W. Martin J.W. Hornbeck pierce 1990 General Technical Report NE-141 USDA Forest Service 44 pp. D.C. Buso likens eaton 2000 Gen. Tech. Rep. NE-275 U.S. Department of Agriculture, Forest Service, Northeastern Research Station Newtown Square, PA 52 pp. uid=HBR,o=lter,dc=ecoinformatics,dc=org all public read w6-stm Stream chemistry data of watershed 6 at Hubbard Brook lter w6-stm.txt ASCII 1 \n\r column , http://www.hubbardbrook.org/data/data_policy.php?firstname=metacat&lastname=user&affiliation=Other&view=1&accept=1&comments=none&phone=6035551212&email=none@loopback.com&target=w6-stm.txt

Volume-weighted, average, monthly concentrations in streamwater. Data are only used to calculate solute export for HBEF Watershed 6. Base cations are available since 1963; aluminum, ammonium, pH, anions, and dissolved silica since 1964. Aluminum analyses discontinued after 1970; restablished in 1976. Phosphate routinely determined first in 1972.

These data are physically located at the Institute of Ecosystem Studies, Robert S. Pierce Ecosystem Laboratory, Hubbard Brook Experimental Forest, W. Thornton, NH. January 2013: Dissolved Inorganic Nitrogen data (2000-present) temporarily unavailable pending quality assurance testing; please check back for updates. ws watershed (6) 6 the number of the watershed (is 6 throughout this dataset) year year YYYY 1 mo month MM 1 1 12 flow total streamflow in mm/month (over any unit of area) millimetersPerMonth .001 real -3.000 Data missing or not taken Ca calcium concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken Mg magnesium concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken K potassium concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken Na sodium concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken Al total aluminum in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken NH4 ammonium concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken pH pH dimensionless .01 real -3.00 Data missing or not taken SO4 sulfate concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken NO3 nitrate concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken Cl chloride concentration in mg/L milligramsPerLiter .001 real -3.000 Data missing or not taken PO4 phosphate concentration in mg/L (soluble-reactive phosphate) milligramsPerLiter .0001 real -3.0000 Data missing or not taken SiO2 silica concentration in mg/L (measured as silicate) milligramsPerLiter .001 real -3.000 Data missing or not taken unit of streamflow