James B Shanley

Soil Frost at Sleepers River Research Watershed, Danville, Vermont

Soil frost measurements have been made at Sleepers River Research Watershed starting in 1983. Measurements were made by U.S. Army Corps of Engineers Cold Regions Research and Engineering Laboratory from 1983 to 1993, followed by the U.S. Geological Survey from 1993 to the present. Measurements started at 5 sites and has increased to 10 sites. Sites range in elevation from 225 to 670 meters and are in a mix of field and forest types. Soil frost measurements are made with tubes filled with methylene blue solution; on freezing, the methylene blue remains in the liquid phase, yielding clear ice that marks the depth of soil frost (Ricard and others, 1976). Soil frost measurements typically are made 2 to 4 times a month...

Categories: Data; Tags: Climatology, Danville, Vermont, USGS Science Data Catalog (SDC), Water Resources, biota, All tags... infiltration, runoff, snow depth, soil frost, Fewer tags

Storm Event Dissolved Organic Carbon and Total Dissolved Nitrogen Concentrations and Yields for Precipitation, Throughfall, Stemflow, and Stream Water and Hourly Streamflow and Precipitation Record for the W-9 Catchment, Sleepers River Research Watershed, 2017 and 2018 (ver. 2.0, September 2022)

This dataset describes water yields for precipitation, throughfall, and stemflow for 22 rain events within the 40.5-hectare (ha) forested W-9 catchment at Sleepers River, Vermont. Sampling occurred during the summer and fall of 2018. Dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) concentrations are reported for each sampled event. The dataset also includes 5-minute catchment normalized runoff and the hourly precipitation record for 2017 and 2018 calendar years. Stream water chemistry for DOC and TDN are also included. Major ions and spectroscopic properties are also reported. First posted May 17, 2021, ver. 1.0 Revised September 2022, ver. 2.0

Categories: Data, Data Release - Revised; Tags: Dissolved organic carbon, Precipitation, Sleepers River Research Watershed, Stemflow, Throughfall, All tags... USGS Science Data Catalog (SDC), Fewer tags

Aqueous chemistry database, Sleepers River Research Watershed, Danville, Vermont, 1991-2018

The Sleepers River Research Watershed, near Danville, Vermont, is a 111-square-kilometer watershed established in 1958 by the Agricultural Research Service.The research watershed has since been operated by three other federal agencies: National Weather Service, U.S. Army Cold Regions Research and Engineering Laboratory (CRREL), and U.S. Geological Survey (USGS). USGS started at the site in collaboration with CRREL in 1991 and has been the sole operating entity since 2000. From 1991 to 2017, the research watershed was part of the national 5-site network of the USGS Water, Energy, and Biogeochemical Budgets (WEBB) program. Since 2017 Sleepers has been funded by USGS Land Change Science to continue the core measurements...

Tags: Connecticut River basin, Danville, Geochemistry, Sleepers River, Sleepers River, All tags... USGS Science Data Catalog (SDC), Vermont, W-9, Water Quality, accuracy, climate change, concentration-discharge, detection limit, groundwater, headwater, location, precipitation, precision, snowmelt, soil water, stream chemistry, Fewer tags

Five-minute discharge; daily precipitation, stream runoff, and maximum and minimum air temperature; and annual precipitation and runoff for W-9 catchment, Sleepers River Research Watershed near Danville, Vermont, 1991-2018

This data release supports publications on the Sleepers River Research Watershed near Danville, Vermont. Most of the research at Sleepers River takes place at W-9, the 40.5-hectare forested headwater site. Topics include understanding hydrologic flow paths, biogeochemical cycling, and organic carbon dynamics. Flow and precipitation data are integral to understanding these processes, for example by combining flow and chemical concentrations to compute solute export from the catchment. These records begin in late September 1991 and extend through calendar year 2018. The release includes five-minute data for discharge, daily data for precipitation, runoff,and maximum and minimum air temperature, and an annual tabulation...

Categories: Data; Tags: Climatology, Sleepers River, Sleepers River, USGS Science Data Catalog (SDC), Vermont, All tags... Water Resources, air temperature, biogeochemistry, catchment science, hydrological processes, precipitation, runoff, Fewer tags

Río Icacos, Puerto Rico, Turbidity, FDOM, and Water Temperature, March 2017 to March 2019

The dataset presents 5- or 15-minute data for turbidity and Fluorescent Dissolved Organic Matter (FDOM) measured by in-stream sensors at the USGS gage Río Icacos near Naguabo (50075000), Luquillo Experimental Forest, Puerto Rico. The measurement period was 10 March, 2017 to 1 March, 2019. The USGS sensors were co-located with sensors for nitrate and specific conductance operated by University of New Hampshire (UNH), and these datasets are all used in the accompanying publication. A 4-month gap in turbidity in 2018 was mostly filled by UNH data, using a relation between USGS turbidity and co-located UNH turbidity when both sensors were operating. The main metric used in the journal paper was the ratio of coefficient...

Categories: Data; Tags: Climate variability, Fluorescent Dissolved Organic Matter, Geochemistry, Hydrology, Luquillo Experimental Forest, All tags... Naguabo, Nitrate, Precipitation anomaly, Puerto Rico, Río Icacos, Specific conductance, Transporter-to-transformer continuum, Turbidity, USGS Science Data Catalog (SDC), Water Quality, location, Fewer tags