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 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.

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.

This data release contains hourly means of climatological data collected by the U.S. Geological Survey (USGS) from 10/1/1991 to 9/30/2019 at three weather stations in the Loch Vale watershed in Rocky Mountain National Park (RMNP), Colorado. In order of increasing elevation, the three weather stations are Loch Vale meteorological station at RMNP, Colo. (Main weather station, USGS station 401719105394311) at an elevation of 2,925 meters (m) above North American Vertical Datum of 1988 (NAVD 88), Andrews Creek meteorological station at RMNP, Colo. (Andrews Creek weather station, USGS station 401723105400101) at an elevation of 2,990 m above NAVD 88 and Sharkstooth meteorological station at RMNP, Colo. (Sharkstooth weather station, USGS station 401638105402601) at an elevation of 3,500 m above NAVD 88. At the Main weather station, air temperature, humidity, and wind speed and direction were measured at 2-m and 6-m heights above land surface. The four components of net radiation (incoming shortwave, outgoing shortwave, incoming longwave, and outgoing longwave) were measured at the 6-m height. At the Andrews Creek weather station, air temperature, humidity, wind speed and direction, snow depth, and incoming shortwave radiation were measured at 4 m above land surface. At the Sharkstooth weather station, air temperature, humidity, wind speed and direction, and incoming shortwave radiation were measured at 3 m above land surface.

This data release contains hourly means of climatological data collected by the U.S. Geological Survey (USGS) from 10/1/1991 to 9/30/2019 at three weather stations in the Loch Vale watershed in Rocky Mountain National Park (RMNP), Colorado. In order of increasing elevation, the three weather stations are Loch Vale meteorological station at RMNP, Colo. (Main weather station, USGS station 401719105394311) at an elevation of 2,925 meters (m) above North American Vertical Datum of 1988 (NAVD 88), Andrews Creek meteorological station at RMNP, Colo. (Andrews Creek weather station, USGS station 401723105400101) at an elevation of 2,990 m above NAVD 88 and Sharkstooth meteorological station at RMNP, Colo. (Sharkstooth weather station, USGS station 401638105402601) at an elevation of 3,500 m above NAVD 88. At the Main weather station, air temperature, humidity, and wind speed and direction were measured at 2-m and 6-m heights above land surface. The four components of net radiation (incoming shortwave, outgoing shortwave, incoming longwave, and outgoing longwave) were measured at the 6-m height. At the Andrews Creek weather station, air temperature, humidity, wind speed and direction, snow depth, and incoming shortwave radiation were measured at 4 m above land surface. At the Sharkstooth weather station, air temperature, humidity, wind speed and direction, and incoming shortwave radiation were measured at 3 m above land surface.

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.

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.

These data were compiled to assess the status and trends of riparian plant communities along the Colorado River between Glen Canyon Dam and Lake Mead, AZ. Three metrics have been proposed to evaluate the "Riparian Vegetation" goal identified in the Glen Canyon Dam Adaptive Management Program's Long Term Experimental and Management Plan (U.S. Department of Interior, 2016). The three metrics are total living plant cover, the proportion of living cover composed of native species, and native species richness. Current policies for Glen Canyon Dam operations result in three longitudinal bands within the riparian area that are flooded at different frequencies. The band, or hydrologic zone, that is most frequently inundated is referred to here as the “active channel” or “AC.” This includes all areas inundated by releases up to 25,000 cubic feet per second (707 m3/s). The “active floodplain” or “AF” is inundated by high flow experiments and includes areas that are inundated by releases between 25,000 cubic feet per second and 45,000 cubic feet per second (1,274 m3/s). The “inactive floodplain” or “IF” is the area along the river that is inundated by releases over 45,000 cubic feet per second, which is not planned under current policies. The metrics are assessed for each of these hydrologic zones. Data from the Grand Canyon Monitoring and Research Center's riparian vegetation monitoring protocol (Palmquist and others, 2018) can be used to evaluate these metrics, which is what is provided here. In short, 80-100 sample sites are randomly selected each year. These sites include debris fans, eddy sandbars, and channel margins. At each randomly selected sample site, ocular cover estimates of each plant species occurring in 1-m2 quadrats spanning the hydrological zones are recorded, along with an estimate of total living plant cover and associated environmental variables. The first metric, total living plant cover, consists of two pieces of data; plant occurrence (a plant is present in the sample frame) and plant cover (proportion of the sample frame covered with living plants). Cover is represented by both an ordinal cover class (1, 2, 3, 4, 5, 6, etc.) and the midpoint of the cover class value (0.01%, 0.5%, 1%, 5%, 10%, 15%, etc). The proportion of native cover is the sum total of native plant cover divided by the sum total of plant cover (native plus nonnative cover) for a sample frame. Native plant richness is the total number of native species rooted inside a sample frame. The total living plant cover data are available for 2016 through 2023. The native cover and richness data are available for 2014 and 2016 through 2023.

,The site is located on the USDA-ARS's Reynolds Creek Experimental Watershed. It is dominated by Wyoming big sagebrush on land managed by USDI Bureau of Land Management.,