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.

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.

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.

The data were collected summer, 2016, 2017, and 2018. Continuous temperature loggers were deployed along the Pend Oreille River between Albeni Falls Dam and the Box Canyon Dam. Loggers were checked every 1-2 weeks throughout the summer.

The data were collected summer, 2016, 2017, and 2018. Continuous temperature loggers were deployed along the Pend Oreille River between Albeni Falls Dam and the Box Canyon Dam. Loggers were checked every 1-2 weeks throughout the summer.

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.

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.

The Upper Delaware River is a unique example of an aquatic system where summer river temperature is actively managed for ecological purposes. River temperature at the mainstem Delaware River at Lordville, NY gage (USGS 01427207) is targeted to remain below 25°C, with warm events potentially mitigated via directed upstream reservoir releases, a process guided by predictive tools. These directed releases currently occur at the Cannonsville Dam on the West Branch, though the temperature criteria at the Lordville gage is also influenced by releases from the Pepacton Dam on the east branch. To increase the spatial resolution of summer river temperature data available for understanding river temperature processes and informing predictions, 40 Onset Tidbit water temperature loggers (models MX2203 and v2 running at 15 min collection intervals) were attached to masonry bricks and deployed temporarily along the riverbed along the East Branch, West Branch, and mainstem Delaware River down to the Lordville gage. The common deployment period for these temperature loggers was 7/23/21 to 8/29/21, and due in part to several high flow events over that period, 26 loggers were ultimately recovered with data. There were three consecutive days (8/10 to 8/12/21) of thermal mitigation dam releases during the logger deployment period. While most of the recovered temperature loggers were relatively clean of sediments when found, four sites showed accumulation of alluvial fines over the loggers which may have impacted recorded river water temperatures, as listed in the read.me file on this root page. Potential deposition of sediments on the temperature loggers at other points over this record is unknown, though several turbid river flows did occur during the period. This public data release contains raw instrument export files (.csv format) and ‘processed’ temperature data. River temperature data in the ‘Combined_Temperature_Data.csv’ file have been trimmed to individual logger deployment times, the time zone may have been adjusted to UTC-05:00, and all records were resampled at a common 15-min interval; but have otherwise not been manipulated from the raw data. The Tidbit temperature loggers were all newly purchased when deployed and were assumed therefore to be calibrated and operating at the manufacturers reported specifications (accuracy +/- 0.2°C, resolution 0.01°C).

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.