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64 results for “stream chemistry”
Surface and hyporheic porewater chemistry and sediment nitrification potentials in Von Guerard Stream, McMurdo Dry Valleys, Antarctica (2018-2020)
Surface water and hyporheic porewater samples were collected at high frequency during the 2017-18 (01/20/2018-01/21/2018) and 2018-19 (01/10/2019-01/12/2019) flow seasons, and opportunistically throughout the 2019-20 flow season (12/17/2019-1/25/2020) from the lower reaches of Von Guerard Stream, Taylor Valley, McMurdo Dry Valleys, Antarctica. Porewater samples were collected using plastic tubing inserted to depths of 15 or 30 cm and drawn out by syringe. This data package includes sampling locations and water chemistry data (including concentrations for dissolved organic nitrogen species, dissolved organic carbon, silica, as well as water isotopes). A laboratory nitrification potential assay was performed on sediments collected from Von Guerard stream during the 2017-18 flow season to assess the functional microbial potential of the hyporheic microbial community to perform nitrification.
Stream water chemistry data for Watershed Flume site, 2005 - ongoing.
This is a summary of major ion concentrations for stream water samples collected at the outflow of the Flume sampling site. The flume sampling site is located in the Green Lakes Valley which is part of the Boulder County Watershed and located near Niwot Ridge.
SBC LTER: Land: Stream chemistry in the Santa Barbara Coastal drainage area, 2000 -2018
This data package contains stream water chemistry measurements taken in Santa Barbara area watersheds, between 2000 and 2018. We do not plan to update this dataset after 2018 because the watershed component of the research within SBCLTER was terminated. Stream water samples were collected weekly during non-storm flows in winter, and bi-weekly during summer. During winter storms, samples were collected hourly (rising limb) or at 2-4 hour intervals (falling limb). Analytes sampled in the SBC LTER watersheds included dissolved nitrogen (nitrate, ammonium, total dissolved nitrogen); soluble reactive phosphorus (SRP); particulate organic carbon, nitrogen and phosphorus; total suspended sediments; and conductivity. There were two tables in this dataset. Samples from "registered stations" (see geographic coverage) were in the first data table (see table name). Many other samples had been collected ad hoc, or as "stations of opportunity". These had been collected in a second table, designated "non-registered". The station codes for these samples may have been reused, and were not recorded in metadata (but station codes can be found in data).
The role of catchment characteristics, discharge, and active layer thaw on seasonal stream chemistry across ten permafrost catchments
<p>Data used for the paper: The role of catchment characteristics, discharge, and active layer thaw on seasonal stream chemistry across ten permafrost catchments. Contains water quality and discharge data. See paper for more details.</p>
Chemistry of stream water for the Lamprey River Hydrologic Observatory
Stream water is collected at weekly to monthly intervals at several sites within the Lamprey River Hydrologic Observatory (LRHO). These data sets begin in 1999. Stream water grab samples are taken from a well-mixed portion of the stream channel on the routine sampling day (typically Tuesdays). Additional samples are collected during selected storm events. A continuous record of stream discharge is recorded by the United States Geological Survey (USGS 01073500) near the mouth of the Lamprey River and average daily and instantaneous stream discharge data are available. Hourly climate data are available from the NOAA NCDC U.S. Climate Reference Network (USCRN) at a station (NH Durham 2 SSW) in the lower part of the watershed. Field meters are used to determine dissolved oxygen, pH and conductivity in the stream and stream samples are filtered (pre-combusted 0.7 μm Whatman GF/F glass fiber filter) and frozen prior to analysis unless otherwise specified. All analyses were conducted at the Water Quality Analysis Laboratory at the University of New Hampshire.
ARCSS/TK water chemistry and total suspended sediment data from I-Minus2 and Toolik River thermokarsts and receiving streams, near Toolik Field Station, Alaska, summers 2006-2013.
Water samples were taken at 5 locations at both I-Minus2 and Toolik River thermokarst sites (10 sampling locations total). A combination of ISCO and manual grab samples were taken depending on the sampling location and year.
Caribou-Poker Creeks Research Watershed (CPCRW): 15 min stream temperature and chemistry (nitrate-N, fDOM, specific conductivity, turbidity, dissolved oxygen, PAR) from May-Sept 2017
This dataset contains 15 min stream temperature and chemistry (nitrate-N, fDOM, specific conductivity, turbidity, dissolved oxygen) of streams draining the C2, C3, P6, and C4 subcatchments of the Caribou-Poker Creeks Research Watershed (CPCRW). Photosynthetic active radiation at the stream surface is also provided. Data is given in tidy format: each variable forms 1 column, each 15-min observation forms 1 row, and data is sortable by site and timestamp.
Water Chemistry in Streams, Lakes Wetlands and Groundwater near the KBS LTER at the Kellogg Biological Station, Hickory Corners, MI (1996 to 2017)
Dataset Abstract Water chemistry is measured in diverse surface waters and in two water supply wells in the vicinity of the KBS LTER. This dataset includes sites sampled over time (streams, wells, some wetlands) as well as wetland sites sampled once or a few times. A separate dataset includes soil water chemistry sampled from the LTER treatments. original data source http://lter.kbs.msu.edu/datasets/50
Lake Hoare Tracer Test Stream Chemistry
As part of the McMurdo Dry Valleys, Long Term Ecological Research (MCM-LTER) project in Antarctica, a LiCl tracer was injected into Andersen Creek in the Lake Hoare basin on 17 December 2012. The purpose of this study was to determine the fate of stream water below lake ice. Injection began at 20:30 hours and continued for two hours. Water samples were collected at half-hour intervals from 5 stream sites and 15 ice boreholes over a 4 hour period beginning at the start of injection. Samples were analyzed for major cations and major anions using an ion chromotograph at McMurdo Station. Results show that stream water moved West along the lake shoreline below the moat ice, and did not generate interflow below the perennial lake ice.
McMurdo Dry Valleys Stream Chemistry - Total Nitrogen
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic aqueous geochemical sampling program has been undertaken. A series of terrestrial water samples have been collected and analyzed for dissolved total nitrogen levels. This dataset shows concentrations of total nitrogen (in filtered samples) found in various streams of the McMurdo Dry Valleys.
Stream water chemistry data for Soddie stream, 1999-2013.
This is a summary of major ion concentrations for stream water samples collected at the outflow of the Soddie stream.
Data from: The biogeographical patterns of species richness and abundance distribution in stream diatoms are driven by climate and water chemistry
In this inter-continental study of stream diatoms, we asked three important but still unresolved ecological questions: 1) What factors drive the biogeography of species richness and species abundance distribution (SAD); 2) Are climate-related hypotheses, which have dominated the research on the latitudinal and altitudinal diversity gradients, adequate in explaining spatial biotic variability; and 3) Is the SAD response to the environment independent of richness? We tested a number of climatic theories and hypotheses (i.e., the species-energy and the metabolic theory; and the energy variability and the climatic tolerance hypothesis) but found no support for any of these concepts as the relationships of richness with explanatory variables were non-existent, weak or unexpected. Instead, we demonstrated that diatom richness and SAD evenness generally increased with temperature seasonality and at mid- to high total phosphorus concentrations. The spatial patterns of diatom richness and the SAD—mainly longitudinal in the US, but latitudinal in Finland—were defined primarily by the covariance of climate and water chemistry with space. The SAD was not entirely controlled by richness, emphasizing its utility for ecological research. Thus, we found support for the operation of both climate and water chemistry mechanisms in structuring diatom communities, which underscores their complex response to the environment and the necessity for novel predictive frameworks.
Data from: The biogeographical patterns of species richness and abundance distribution in stream diatoms are driven by climate and water chemistry
Open the record for dataset details and reuse information.
The Bear Brook Watershed in Maine, USA: Long-term stream chemistry 1986 - 2016
This dataset includes stream chemistry for the Bear Brook Watershed in Maine (BBWM). The BBWM consists of two watersheds, the reference East Bear (EB), receiving ambient deposition, and the treated West Bear (WB), which received experimental elevated N+S deposition for 27 years. Stream samples were collected as grab samples and event samples (e.g. during snowmelt and rain events) using ISCO™ automated samplers from both EB and WB streams. Stream chemistry was interpolated between collections to develop annual or monthly stream water fluxes.
Stream Chemistry / Dissolved Inorganic Nitrogen
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic aqueous geochemical sampling program has been undertaken. A series of terrestrial water samples have been collected and analyzed for dissolved inorganic nitrogen levels. This dataset shows concentrations of dissolved inorganic nitrogen found in various streams of the McMurdo Dry Valleys.
Stream Chemistry / Dissolved Inorganic Carbon
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic aqueous geochemical sampling program has been undertaken. A series of terrestrial water samples have been collected and analyzed for dissolved inorganic carbon levels. This dataset shows concentrations of dissolved inorganic carbon found in various streams of the McMurdo Dry Valleys.
Stream water chemistry data for Green Lake 1, 1985 - 2010.
This is a summary of major ion concentrations for stream water samples collected at the outlet stream from Green Lake 1. Sampling point was at the plate weir where the stream emerges from the base of the lake dam, i.e. after drainage through the dam.
Stream water chemistry data for Como creek, 1998-2013
Surface water chemistry samples were taken from the Como Creek catchment located on and below the southeast flank of Niwot Ridge (40°N, 105°W) in Colorado, USA, approximately 4–9 km east of the Continental Divide. The catchment is 5.36 km2 in area and ranges in elevation from 2900 to 3560 m. Measurements began in 1998 and continue through 2013.
Stream chemistry and stream flow overview, methods, and procedures
The Baltimore Ecosystem Study Stream Flow and Chemistry Overview document contains information regarding to BES stream chemistry. The topics are: Section 1: Sampling Network Section 2: Streamflow Analysis Section 3: Stream Chemistry Summary of Section 1: Sampling Network 1. Longitudinal sites along the Gwynns Falls 2. Small watersheds Summary of Section 2: Streamflow analysis: 2.1. Collection of Flow Data at USGS Stream Gage Stations 1. General Approach to Discharge 2. Open Channel Sites 3. Sites with Primary Devices 4. Flow Data Publication 5. USGS Methodologies and Protocols 2.2. Stream Gage Calibration and Flow Rating QAQC: Weekly Checks by BES Crews 1. Inside and Outside Gage Check 2. Low Flow Rating Check 3. High Flow Rating Check 4. Digital Photos 5. Selected Station Specific Notes 2.3. Preparation of Flow Data for Exploratory Analysis and Load computation Summary of Section 3: Stream Chemistry 1. Field Sampling 2. Blanks and Spikes 3. Chemical Analyses
Stream Chemistry for Reactivated Channel
Data corresponds to the chemistry measurements taken on the reactivated channel, mostly inorganic
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International Brain Laboratory public data
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OpenNeuro
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