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CF021: Water chemistry in streams and precipitation samples in the HJ Andrews Experimental Forest, 2022-2023

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Status: asNeeded
Period: 2022-05-06 to 2023-05-04
Version: 2
Published: 2024-12-02
EDI Package ID: knb-lter-and.12136.2
Source XML: CF021_2.xml

Notice

"As Is" Basis: All content, including maps and forecasts, is provided without warranties. Users are advised to independently verify critical information.

Citation

Segura, C.; Ortega, J.; Sullivan, P. 2024. Water chemistry in streams and precipitation samples in the HJ Andrews Experimental Forest, 2022-2023 Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/CF021 Accessed 2026-05-10.

Abstract

Water samples have been collected for chemical analysis at various locations in the HJ Andrews Experimental Forest, starting in 2022. The database includes grab samples gathered approximately weekly in selected streams and bulk precipitation collected at the PRIMET meteorological station. Samples were analyzed for cations (Si4+, Ca2+, Mg2+, K+, and Na+) and anions (Cl- and SO42-).

Coverage

Temporal coverage: 2022-05-06 to 2023-05-04

Geographic coverage: Hydrologic systems in the Andrews Forest

Spatial coverage:

Bounds: W -122.26172200, E -122.10084700, N 44.28196400, S 44.19770400

Purpose
  • The objective of this data is to characterize the stream water chemistry in the Andrews Forest.
Project

Title: Long-Term Ecological Research

Personnel
Abstract
  • The H.J. Andrews Experimental Forest is a living laboratory that provides unparalleled opportunities for the study of forest and stream ecosystems in the central Cascade Range of Oregon. Since 1980, as a part of the National Science Foundation Long Term Ecological Research (NSF-LTER) program, the Andrews Experimental Forest has become a leader in the analysis of forest and stream ecosystem dynamics.
  • Long-term field experiments and measurement programs have focused on climate dynamics, streamflow, water quality, and vegetation succession. Currently researchers are working to develop concepts and tools needed to predict effects of natural disturbance, land use, and climate change on ecosystem structure, function, and species composition.
  • The Andrews Experimental Forest is administered cooperatively by the USDA Forest Service Pacific Northwest Research Station, Oregon State University and the Willamette National Forest. Funding for the research program comes from the National Science Foundation (NSF), US Forest Service Pacific Northwest Research Station, Oregon State University, and other sources.
Funding

Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University. National Science Foundation: DEB2025755

Awards
Study Area Description
  • Long-Term Ecological Research
    The Andrews Forest is situated in the western Cascade Range of Oregon, and covers the entire 15,800-acre (6400-ha) drainage basin of Lookout Creek. Elevation ranges from 1350 to 5340 feet (410 to 1630 m). Broadly representative of the rugged mountainous landscape of the Pacific Northwest, the Andrews Forest contains excellent examples of the region's conifer forests and associated wildlife and stream ecosystems. These forests are among the tallest and most productive in the world, with tree heights of often greater than 250 ft (75 m). Streams are steep, cold and clean, providing habitat for numerous aquatic organisms.
Associated Party
Contact
  • Information Manager
    Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
    Email: hjaweb@lists.oregonstate.edu
Publisher
  • Andrews Forest LTER Site
    Role: Publisher
    Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
    Phone: (541) 737-8480
    Email: lterweb@lists.oregonstate.edu
Study Description

Water samples have been collected for chemical analysis at various locations in the HJ Andrews Experimental Forest, starting in 2022. The database includes grab samples gathered approximately weekly in selected streams and bulk precipitation collected at the PRIMET meteorological station. Samples were analyzed for cations (Si4+, Ca2+, Mg2+, K+, and Na+) and anions (Cl- and SO42-). The objective of this data is to characterize the stream water chemistry in the Andrews Forest. Field Methods - CF021

Purpose: The objective of this data is to characterize the stream water chemistry in the Andrews Forest.

Methods

Method Steps

Field Methods - CF021
  • To capture seasonal streamflow and precipitation signals weekly stream and precipitation samples were collected from May 2022 to May 2023. Stream samples were collected in the middle of the stream during low flow conditions and within a wading distance from banks during high flow conditions. Two samples were collected from each site, filtered (0.45 µm), and split: one acidified for cations, the other un-acidified for anions. Composite precipitation samples were collected from a Stratus Precision Rain gauge (Stratus, US) at PRIMET.
Laboratory Methods - CF021
  • Samples were analyzed for cations (Si4+, Ca2+, Mg2+, K+, and Na+) using a Spectro ARCOS MultiView (AMETEK, Czech Republic) equipped with an optical emission spectrometer with true radial or axial observation of inductively coupled plasma (ICP-OES), and anions (Cl- and SO42-) using a Dione Aquion Ion Chromatography (IC) System (ThermoFisher Scientific, US). All solutes are reported in mg/l (ppm) with an analytical uncertainty of ± 5%).

Sampling

Study Extent
  • Sampling frequency: Approximately weekly
Sampling Description
  • To examine spatiotemporal patterns in stream chemistry, we sampled 10 sites across the Lookout Creek catchment. Five tributary stream sites were selected Cold, Longer, Mack, Nostoc, and McRae Creeks. Drainage areas of these sub-catchments range from 0.69 km2 to 15.63 km2. Five additional sites were established roughly below the confluence of each tributary along the main stem of Lookout Creek with drainage areas ranging from 5.53 km2 to 62.42 km2.
Spatial Sampling Units
  • Mack Creek
    W -122.16826200, E -122.14698900, N 44.22714600, S 44.20991900
  • Andrews Experimental Forest (HJA)
    W -122.26172200, E -122.10084700, N 44.28196400, S 44.19770400
    Altitude: 1631 to 1631 meter
  • Cold Creek
    W -122.12735800, E -122.11082800, N 44.23442340, S 44.22821100
    Altitude: 1341 to 1341 meter
  • Longer Creek
    W -122.12722520, E -122.11509900, N 44.23462540, S 44.23358700
  • McRae Creek Synoptic Sample Sites
    W -122.20859010, E -122.20859010, N 44.23328661, S 44.23328661
  • Primary Meteorological Station
    W -122.25594100, E -122.25594100, N 44.21189300, S 44.21189300
    Altitude: 436 to 436 meter
  • Nostoc Creek
    W -122.17414700, E -122.17414700, N 44.23114313, S 44.23114313
  • Andrews Lookout Creek Gaging Station
    W -122.25714600, E -122.25714600, N 44.21012600, S 44.21012600
    Altitude: 422 to 422 meter
  • Andrews Mack Creek Gaging Station
    W -122.16744700, E -122.16744700, N 44.21943621, S 44.21943621
    Altitude: 755 to 755 meter
  • Nostoc Creeek Synoptic Sample Sites
    W -122.17414702, E -122.17414702, N 44.23114312, S 44.23114312
  • HF028 stream grab sample collection point at Cold Creek
    W -122.12408310, E -122.12408310, N 44.22943235, S 44.22943235
  • HF028 stream grab sample collection point at Longer Creek
    W -122.14752000, E -122.14752000, N 44.23393848, S 44.23393848
  • HF028 stream grab sample collection point 1 at Upper Lookout
    W -122.12694316, E -122.12694316, N 44.22811132, S 44.22811132
  • HF028 stream grab sample collection point 2 at Upper Lookout
    W -122.12789747, E -122.12789747, N 44.22846537, S 44.22846537
  • HF028 stream grab sample collection point 3 at Upper Lookout
    W -122.15963000, E -122.15963000, N 44.23183685, S 44.23183685
  • HF028 stream grab sample collection point 4 at Upper Lookout
    W -122.18445700, E -122.18445700, N 44.23165128, S 44.23165128
  • HF028 stream grab sample collection point 5 at Upper Lookout
    W -122.25717312, E -122.25717312, N 44.21011748, S 44.21011748
  • HF028 stream grab sample collection point at Mack Creek
    W -122.16727561, E -122.16727561, N 44.21933889, S 44.21933889
  • HF028 stream grab sample collection point at McRae Creek
    W -122.20755355, E -122.20755355, N 44.23401235, S 44.23401235
  • HF028 stream grab sample collection point at Nostoc Creek
    W -122.17399610, E -122.17399610, N 44.23124840, S 44.23124840
Software

No software entries listed in this EML file.

Keywords
  • LTER controlled vocabulary: geography (theme), hydrology (theme), chemistry (theme), streams (theme)
Taxonomic Hierarchy

No taxonomic hierarchy listed in this EML file.

Data Entities
# Entity Metadata Data
1 CF02101
Water chemistry in streams and precipitation samples in the HJ Andrews Experimental Forest
This includes grab stream samples collected submonthly at 10 streams and bulk precipitation samples collected at PRIMET
 METADATA DATA
Metadata
CF02101 - Water chemistry in streams and precipitation samples in the HJ Andrews Experimental Forest

Object name: CF02101_v1.csv

Records: 297

Attributes: 13

Temporal coverage: 2022-05-06 to 2023-05-04

File size: 27173 byte

Checksum (MD5): 86b2c8ebc7c780e8d4b4e1f5c721570f

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    CF02101.COLLECTION_PT, CF02101.SAMPLE_DATE, CF02101.SITECODE, CF02101.TYPE
  • notNullConstraint: NOTNULL
    CF02101.COLLECTION_PT, CF02101.DBCODE, CF02101.ENTITY, CF02101.SAMPLE_DATE, CF02101.SITECODE, CF02101.TYPE
Attributes (13)
DBCODE - char(5) (nominal)

ID: CF02101.DBCODE

FSDB Database Code

Type system: Microsoft SQL Server 2019

Code definitions (1)
  • CF021
    FSDB Database Study Code
ENTITY - numeric(2,0) (ratio)

ID: CF02101.ENTITY

Entity number

Type system: Microsoft SQL Server 2019

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=1.0000 (exclusive=false)

SITECODE - char(15) (nominal)

ID: CF02101.SITECODE

Site code or stream name for the sampling location

Type system: Microsoft SQL Server 2019

Code definitions (8)
  • GSMACK
    Andrews Mack Creek Gaging Station
  • GSLOOK
    Andrews Lookout Creek Gaging Station
  • PRIMET
    Primary Meteorological Station
  • Longer Creek
    Longer Creek
  • Cold Creek
    Cold Creek
  • Upper Lookout
    Upper Lookout Creek
  • McRae Creek
    McRae Creek Synoptic Sample Sites
  • Nostoc Creek
    Nostoc Creeek Synoptic Sample Sites
TYPE - char(4) (nominal)

ID: CF02101.TYPE

Type of sample collected

Type system: Microsoft SQL Server 2019

Code definitions (2)
  • GB
    Surface water
  • PREC
    Bulk Precipitation
COLLECTION_PT - char(8) (nominal)

ID: CF02101.COLLECTION_PT

Collection point for the sampling location

Type system: Microsoft SQL Server 2019

Code definitions (11)
  • PRIMET
    Primary Meteorological Station
  • CC
    HF028 stream grab sample collection point at Cold Creek
  • LO2
    HF028 stream grab sample collection point 2 at Upper Lookout
  • LO1
    HF028 stream grab sample collection point 1 at Upper Lookout
  • MR
    HF028 stream grab sample collection point at McRae Creek
  • LO5
    HF028 stream grab sample collection point 5 at Upper Lookout
  • MC
    HF028 stream grab sample collection point at Mack Creek
  • LC
    HF028 stream grab sample collection point at Longer Creek
  • NC
    HF028 stream grab sample collection point at Nostoc Creek
  • LO3
    HF028 stream grab sample collection point 3 at Upper Lookout
  • LO4
    HF028 stream grab sample collection point 4 at Upper Lookout
SAMPLE_DATE - datetime (dateTime)

ID: CF02101.SAMPLE_DATE

Date of sample collection

Type system: Microsoft SQL Server 2019

Date format: YYYY-MM-DD

CA - numeric(7,4) (ratio)

ID: CF02101.CA

Dissolved calcium concentration; method inductively coupled plasma optical emission spectroscopy (ICP-OES)

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=0.0020 (exclusive=false), max=26.7800 (exclusive=false)

MG - numeric(6,4) (ratio)

ID: CF02101.MG

Dissolved magnesium concentration; method inductively coupled plasma optical emission spectroscopy (ICP-OES)

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=0.0046 (exclusive=false), max=4.4834 (exclusive=false)

NA - numeric(6,4) (ratio)

ID: CF02101.NA

Dissolved sodium concentration; method inductively coupled plasma optical emission spectroscopy (ICP-OES)

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=0.0200 (exclusive=false), max=14.1910 (exclusive=false)

K - numeric(6,4) (ratio)

ID: CF02101.K

Dissolved potassium concentration; method inductively coupled plasma optical emission spectroscopy (ICP-OES)

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=0.0142 (exclusive=false), max=1.4100 (exclusive=false)

SI - numeric(7,4) (ratio)

ID: CF02101.SI

Dissolved silica concentration; method inductively coupled plasma optical emission spectroscopy (ICP-OES)

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=0.0082 (exclusive=false), max=51.4497 (exclusive=false)

CL - numeric(6,4) (ratio)

ID: CF02101.CL

Dissolved chloride concentration; method ion chromatography

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=1.0536 (exclusive=false), max=61.1358 (exclusive=false)

SO4 - numeric(6,4) (ratio)

ID: CF02101.SO4

Dissolved sulphate concentration; method ion chromatography

Type system: Microsoft SQL Server 2019

Unit: milligrams per liter

Precision: 1

Numeric domain: type=real, min=0.5998 (exclusive=false), max=4.3200 (exclusive=false)

Units
number number dimensionless number dimensionless 1 dimensionless number, i.e., ratio, count
milligrams per liter mg/l massDensity milligramPerLiter kilogramPerMeterCubed 0.001 milligrams per liter
Related Datasets

No related dataset codes found in the EML text fields.

Related Publications

No publication citations found in this EML file.

Related Files

No related files listed in this EML file.

Intellectual Rights

Data Use Agreement:

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. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.

General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

Licensed

License: Creative Commons Attribution 4.0 International Public License

Identifier: CC-BY-4.0

URL: https://creativecommons.org/licenses/by/4.0/

Maintenance

Maintenance update frequency: asNeeded

Description

  • An update history is logged and maintained with each new version of every dataset.

Change History

  • Version1 (2024-10-01)
    Study code and preliminary metadata established
  • Version2 (2024-12-02)
    Original creation of data entity from metadata file. Uploaded csv data; ran QC and uploaded to SQL.