Water chemistry and land cover attributes for The Loch and Sky Pond, Rocky Mountain National Park. These data were part of a larger survey (data from other sources) used to describe drivers of change to mountain lake productivity.

Diatom taxonomy, carbon and nitrogen stable isotope values, and algal pigment data from lake sediment layers dating back to 1600 Common Era (CE) for Sky Pond and The Loch in Rocky Mountain National Park.

These files consist of scanned field notebooks from long-term research and monitoring conducted in the Loch Vale watershed, Rocky Mountain National Park from June 17, 1981, through September 19, 2023. There are 72 individual PDF files. They are accompanied by a spreadsheet that serves as a pointer to the contents of each notebook, including the range of years in each, start and end dates, field observers' names or initials, and whether the field notebook includes notes on specific sample collections or research activities. There is a column noting whether and when there was field equipment maintenance, whether the notebooks include sample sites outside Loch Vale watershed (and where), and names of the notebook scanners, proofreaders, and quality assurance evaluators. A map of the locations of all sample sites within Loch Vale and additional long-term sites in Rocky Mountain National Park is included with the field notebook files. This file is titled "AllSitesMap_fieldnotebooksdatarelease.pdf".

These files consist of scanned field notebooks from long-term research and monitoring conducted in the Loch Vale watershed, Rocky Mountain National Park from June 17, 1981, through September 19, 2023. There are 72 individual PDF files. They are accompanied by a spreadsheet that serves as a pointer to the contents of each notebook, including the range of years in each, start and end dates, field observers' names or initials, and whether the field notebook includes notes on specific sample collections or research activities. There is a column noting whether and when there was field equipment maintenance, whether the notebooks include sample sites outside Loch Vale watershed (and where), and names of the notebook scanners, proofreaders, and quality assurance evaluators. A map of the locations of all sample sites within Loch Vale and additional long-term sites in Rocky Mountain National Park is included with the field notebook files. This file is titled "AllSitesMap_fieldnotebooksdatarelease.pdf".

The data include measurements of chlorophyll a and algal stoichiometry from benthic algae collected from Sky Pond, Rocky Mountain National Park, Colorado, in 2015-2017; results of nutrient diffusion experiments in Sky Pond including chlorophyll a and other pigments to identify chlorophytes, bacillariophytes, and myxomycetes, and results of a laboratory incubation using benthic chlorophytes to identify ecosystem responses (nitrogen uptake, net primary productivity, ecosystem respiration, net ecosystem productivity, and dissolved organic carbon production) under nutrient and temperature treatments.

The data include measurements of chlorophyll a and algal stoichiometry from benthic algae collected from Sky Pond, Rocky Mountain National Park, Colorado, in 2015-2017; results of nutrient diffusion experiments in Sky Pond including chlorophyll a and other pigments to identify chlorophytes, bacillariophytes, and myxomycetes, and results of a laboratory incubation using benthic chlorophytes to identify ecosystem responses (nitrogen uptake, net primary productivity, ecosystem respiration, net ecosystem productivity, and dissolved organic carbon production) under nutrient and temperature treatments.

The Loch Vale watershed (LVWS) project is a long-term research and monitoring program that addresses watershed-scale ecosystem processes, particularly as they respond to atmospheric deposition and climate variability. The LVWS is a 7 square kilometer high-altitude basin located within Rocky Mountain National Park in the Colorado Front Range (Colorado, United States of America). The data include lake and stream year-round measurements of physical water parameters, nutrients, major ions, trace metals, silica, and chlorophyll collected from lakes and streams within the LVWS basin.

Lake and landscape data were compiled from the US Environmental Protection Agency National Lakes Assessment 2007 and 2012 surveys and LakeCat geospatial dataset. Additional climate variables were summarized from national PRISM and NOAA data layers following the same geoprocessing steps used in the LakeCat creation. The compiled dataset includes a derived metric that characterizes the degree of human-related water management presence on a lake that has the potential to significantly alter lake hydrology. The HydrAP metric (anthropogenic hydrological-alteration potential) uses information from the National Inventory of Dams and National Land Cover Database and is described in detail in Fergus et al. 2021. The compiled dataset includes all lake sites in the NLA 2007 survey and only new lake sites in NLA 2012 (i.e., not resampled lake sites during the two survey periods). We retained VISIT_NO = 1 observations for the analyses for a total of 1716 observations for unique lake sites distributed across the conterminous US.

This data release contains water-quality and discharge data collected in Rocky Mountain National Park (RMNP), Colorado by the U.S. Geological Survey (USGS) from 10/1/2010 through 9/30/2019 using in-situ sensors and field meters. Data were collected for the purpose of quantifying exchange fluxes of dissolved carbon dioxide (CO₂) from streams. Parameters include daily mean dissolved CO₂, water temperature, atmospheric pressure, and discharge at seven stream sites and one groundwater spring (DailyData.csv). Hourly mean dissolved CO₂, CO₂ partial pressure (pCO2), water temperature, atmospheric pressure, and dissolved oxygen are presented from 10/1/2016 to 9/30/2017 at one of the stream sites (AndrewsHourlyData.csv). Discrete measurements of dissolved CO₂ are presented for hyporheic samples collected at one site during 2000 (AndrewsHyporheicData.csv) and for a synoptic survey of groundwater springs conducted during summer 2018 (SpringsData.csv).

This data release contains water-quality and discharge data collected at seven stream sites and one groundwater spring in Rocky Mountain National Park (RMNP), Colorado by the U.S. Geological Survey (USGS) from 10/1/2010 to 9/30/2019 using in-situ sensors and field meters. Data were collected for the purpose of quantifying downstream transport of aquatic carbon and exchange fluxes of dissolved carbon dioxide (CO₂) from streams. Parameters include daily mean discharge, dissolved CO₂, water temperature, atmospheric pressure, dissolved oxygen, fluorescent dissolved organic matter (fDOM), nitrate, specific conductance, turbidity, and corrected fDOM from 10/1/2010 to 9/30/2019 (DailyData.csv). Hourly mean dissolved CO₂, CO₂ partial pressure (pCO₂), water temperature, atmospheric pressure, dissolved oxygen, fDOM, nitrate, specific conductance, turbidity, and corrected fDOM are presented from 10/1/2016 to 9/30/2017 at one of the stream sites (AndrewsHourlyData.csv). Water temperature, turbidity, specific conductance, fDOM, corrected fDOM, and discharge values measured at 10–15-minute intervals are presented from 4/27/2011 to 9/30/2017 at two stream sites (UV_data_NandEinlets.csv). Discrete measurements of dissolved CO₂ are presented for hyporheic samples collected at one site during 2000 (AndrewsHyporheicData.csv) and for a synoptic survey of groundwater springs conducted during summer 2018 (SpringsData.csv). First posted June 17, 2021 Revised December 17, 2021 Revised October 11, 2023