The Northeast Temperate Network (NETN) monitors water quality and water quantity at 9 national park sites to document the status and trends of their lake, pond, and stream resources. NPS scientists have collected standardized measurements of stream discharge, stream and lake stage, water transparency, in situ water quality (temperature, dissolved oxygen, pH, etc), and other measurements from May to October every year beginning in 2006. Water samples were also collected each year to measure nitrogen and phosphorus to assess potential nutrient enrichment. This data package contains a cumulative record of all water monitoring data collected at NPS IMD NETN park units through the most recent field season and is organized into twelve (12) datasets: Chemistry_Data_Long_YYYYMMDD.csv – water sample chemistry and nutrient data (e.g., TN, TP, ANC, Chl-a). Long format. Chemistry_Data_Wide_YYYYMMDD.csv – water sample chemistry and nutrient data (e.g., TN, TP, ANC, Chl-a). Wide format. Discharge_Data_YYYYMMDD.csv – stream flow data collected by a current meter. Event_Info_YYYYMMDD.csv – sampling event-level data (e.g., date, observer, meteorological conditions, etc.) Light_Penetration_Data_YYYYMMDD.csv – profiles of photosynthetically active radiation collected by a light meter. Secchi_Data_YYYYMMDD.csv – Secchi disk depth data. Sites_Lake_YYYYMMDD.csv – precise location data and descriptive information for NETN lake sites. Sites_Stream_YYYYMMDD.csv – precise location data and descriptive information for NETN stream sites. Sonde_InSitu_Data_YYYYMMDD.csv – profiles of in situ multiparameter sonde measurement data (e.g., specific conductance, pH, DO, etc.). StageDatum_Info_YYYYMMDD.csv – information on water level benchmarks (e.g., elevation, datum type, etc.). StreamSite_Observations_YYYYMMDD.csv – specific observations about water appearance (e.g., color, algae type, etc.). WaterLevel_Data_YYYYMMDD.csv – water surface heights relative to established benchmarks, including partial and continuous gage station elevation records.

USGS collects streamflow, dissolved oxygen, pH, specific conductance, and water temperature for the Northern Great Plains Network on a 3 year rotation during the ice free season. Provisional data can be accessed from the NWIS external link for 2013, 2016, and 2019. Data for 2019 are attached.

USGS collects streamflow, dissolved oxygen, pH, specific conductance, and water temperature for the Northern Great Plains Network on a 3 year rotation during the ice free season. Provisional data can be accessed from the NWIS external link for 2013, 2016, and 2019. Data for 2019 are attached.

Air temperature, water temperature, and specific conductance of water were continuously measured with data loggers (measurement interval = 30 min.) from 2014 to 2024 at six wadeable stream sites throughout Delaware Water Gap National Recreation Area (n = 3) and New River Gorge National Park and Preserve (n = 3). Data loggers were deployed at stream reaches where benthic macroinvertebrate, fish, and streamside bird communities have been monitored by the National Park Service since 2014. These data were collected as part of a multi-agency Regional Monitoring Network of reference (i.e., relatively undisturbed) streams throughout the Mid-Atlantic Region. Sites were selected based on their high degree of ecological integrity as inferred from previous biological surveys. Methods followed existing protocols that were consistent with approaches used throughout the Regional Monitoring Network.

Air temperature, water temperature, and specific conductance of water were continuously measured with data loggers (measurement interval = 30 min.) from 2014 to 2024 at six wadeable stream sites throughout Delaware Water Gap National Recreation Area (n = 3) and New River Gorge National Park and Preserve (n = 3). Data loggers were deployed at stream reaches where benthic macroinvertebrate, fish, and streamside bird communities have been monitored by the National Park Service since 2014. These data were collected as part of a multi-agency Regional Monitoring Network of reference (i.e., relatively undisturbed) streams throughout the Mid-Atlantic Region. Sites were selected based on their high degree of ecological integrity as inferred from previous biological surveys. Methods followed existing protocols that were consistent with approaches used throughout the Regional Monitoring Network.

Forest vegetation provides an integrated measure of terrestrial ecosystem health by expressing information about the collective suite of drivers and stressors which act upon it. These include climate, disturbance, browse, and invasive species. We developed a comprehensive forest monitoring protocol to detect change in the nine Great Lakes Network parks. Monitoring is conducted on a nine-year rotation, with each of the parks sampled over the course of one summer, once every nine years. Site locations were selected to ensure that they are random, but also spatially balanced throughout the parks. At each sampling site, we collect extensive data on trees (including saplings and seedlings), shrubs, herbs, coarse woody material, and browse. We also carry out assessments of tree health. Data are housed in a Microsoft Access database and published annually in an open-source, machine readable format. Quality control measures include both on site assessments of accuracy, as well as extensive data checking via automated parsing routines. Finally, reports from monitoring are produced on a regular basis and include internal National Park Service technical reports and externally reviewed manuscripts for publication in peer-reviewed journals. All data are publicly available.

As part of the Northeast Coastal and Barrier Network's Estuarine Nutrient Enrichment Monitoring program, Network staff continued to estuarine water quality at several park units. This file contains spatial (i.e., not continuous) water quality data collected through the most recent field season at Gateway National Recreation Area.

Continuous water temperature measurements were recorded at 59 locations in wadeable streams (watershed size = 2 - 100 km2) throughout Delaware Water Gap National Recreation Area and New River Gorge National Park and Preserve from April 2022 to November 2024. Data loggers were deployed at probabilistically selected sites where benthic macroinvertebrate, fish, and streamside bird communities have been monitored by the Eastern Rivers and Mountains Network (National Park Service) since 2014.

Continuous water temperature measurements were recorded at 59 locations in wadeable streams (watershed size = 2 - 100 km2) throughout Delaware Water Gap National Recreation Area and New River Gorge National Park and Preserve from April 2022 to November 2023. Data loggers were deployed at probabilistically selected sites where benthic macroinvertebrate, fish, and streamside bird communities have been monitored by the Eastern Rivers and Mountains Network (National Park Service) since 2014.