cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48443/mka5-3385
title: Barometric pressure above water on-buoy (DP1.20004.001)
title: RELEASE-2023

description: Barometric pressure on buoys is measured every minute and is reported as 1-minute instantaneous measurements and 30-minute mean values. Other than the data collection frequency, this data product has the same data streams and processing as barometric pressure measured at aquatic met stations.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: The buoys are comprised of sensor sets which measure meteorological parameters over a water surface along with submerged sensors that measure physical and chemical parameters of the water body. Some of these sensors are unique to the buoy subsystem and others are shared with other NEON subsystems, such as the wadeable stream sensor sets or terrestrial towers. Due to power, space, and data storage constraints on the buoy, the configuration of sensors deployed on a buoy may be different than those in other parts of NEON. Instrumentation: Vaisala - BAROCAP Digital Barometer PTB330
DOI: 10.48443/het9-3q22
title: Specific conductivity in groundwater (DP1.20015.001)
title: RELEASE-2023

description: Specific conductance is a proxy for the level of total dissolved solids of the groundwater as well as related to the redox potential. Conductivity may also be used as a tracer of distinct water masses for understanding flow. NEON measures of groundwater conductivity at high temporal resolution.  Up to eight wells (and as low as three) are available per aquatic site.  From NEON groundwater elevation measurements, the magnitude and direction of groundwater flow can be calculated, which may be coupled to better understand the exchange between groundwater and surface water. This data product includes continuous quality-controlled groundwater temperature captured every 5 minutes and reported as 5-minute instantaneous measurements and 30-minute averages.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: Multiple groundwater wells per aquatic site are installed in triangular arrays where local features allow. Specific conductance of groundwater is measured in an site-specific array designed to capture shallow groundwater flow and exchange with the surface water feature at the site. Instrumentation: In-Situ, inc. - Aqua TROLL 200
DOI: 10.48443/a1rz-9x22
title: Elevation of surface water (DP1.20016.001)
title: RELEASE-2023

description: Surface water elevation is controlled by precipitation at both the landscape and channel scales, overland flow, interflow and groundwater flow. It is correlated to discharge and is critical to understanding how water moves through the environment, carrying nutrients and sediment, modulating aquatic ecosystem structure and function. This data product contains continuous, quality-controlled, surface water depth converted to elevation above mean sea level. Measurements are taken once per minute and reported as 5 and 30-minute averages.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: Elevation of surface water will be used to provide continuous discharge measurements in wadeable streams, rivers and lakes where flowing inlet and outlet streams are present. Pressure transducers will be placed at both the upstream and downstream sensor stations in wadeable streams, at a single station in rivers and at the inlet and outlet locations of lake sites. Instrumentation: In-Situ, Inc. - Level TROLL 500
DOI: 10.48443/sj11-6q44
title: Shortwave and longwave radiation above water on-buoy (net radiometer) (DP1.20032.001)
title: RELEASE-2023

description: Net shortwave and longwave radiation on buoys is measured every minute and is reported as 1-minute instantaneous measurements and 30-minute mean values. Other than the data collection frequency, this data product has the same data streams and processing as net radiation at aquatic met stations and on the terrestrial instrument towers.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: The buoys are comprised of sensor sets which measure meteorological parameters over a water surface along with submerged sensors that measure physical and chemical parameters of the water body. Some of these sensors are unique to the buoy subsystem and others are shared with other NEON subsystems, such as the wadeable stream sensor sets or terrestrial towers. Due to power, space, and data storage constraints on the buoy, the configuration of sensors deployed on a buoy may be different than those in other parts of NEON. Instrumentation: Hukseflux NR01 Net Radiometer
DOI: 10.48443/mm5s-df23
title: Nitrate in surface water (DP1.20033.001)
title: RELEASE-2023

description: Nitrate is measured using an optical sensor at the downstream (S2) sensor station in streams and on the buoy at lake and river sites. It is reported as a mean value from 20 measurements made during a sampling burst every 15 minutes. Some older data may have been processed as the mean value from 50 measurements, but as of late 2018, the algorithm was updated to 20 measurements and older data will eventually be re-processed to use 20 measurements.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: The stream sensor stations measure PAR at water surface, water level, temperature, water quality, and at downstream stations, nitrate. The buoys are comprised of sensor sets which measure meteorological parameters over a water surface along with submerged sensors that measure physical and chemical parameters of the water. Some of these sensors are unique to the buoy subsystem and others are shared with other NEON subsystems, such as the wadeable stream sensor sets or terrestrial towers. Due to power, space, and data storage constraints on the buoy, the configuration of sensors deployed on a buoy may be different than those in other parts of NEON. Instrumentation: Seabird - SUNA V2 UV nitrate sensor
DOI: 10.48443/qbrt-jq78
title: Photosynthetically active radiation at water surface (DP1.20042.001)
title: RELEASE-2023

description: Photosynthetically active radiation at water surface is measured at 1 Hz at stream sensor sets and twice per minute on buoys at lake and river sites. It is reported as 1-minute mean measurements and 30-minute mean values.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: The stream sensor sets measure PAR at water surface, water level and temperature, and water quality. Downstream sensors also measure nitrate. The buoys are comprised of sensor sets which measure meteorological parameters over a water surface along with submerged sensors that measure physical and chemical parameters of the water body. Some of these sensors are unique to the buoy subsystem and others are shared with other NEON subsystems, such as the wadeable stream sensor sets or terrestrial towers. Due to power, space, and data storage constraints on the buoy, the configuration of sensors deployed on a buoy may be different than those in other parts of NEON. Instrumentation: Kipp & Zonen - PQS1
DOI: 10.48443/9tdw-0g70
title: Air temperature above water on-buoy (DP1.20046.001)
title: RELEASE-2023

description: Air temperature on buoys is measured every minute and is reported as 1-minute instantaneous measurements and 30-minute mean values. Unlike other locations, such as aquatic met stations and the terrestrial tower, there is not a separate sensor for air temperature. The temperature measurements from the relative humidity sensor are used for this buoy data product and these data are a subset of the Relative Humidity of the air above lakes on buoy (DP1.20271.001).

Latency:
Data collected in any given month are published during the second full week of the following month.
description: The buoys are comprised of sensor sets which measure meteorological parameters over a water surface along with submerged sensors that measure physical and chemical parameters of the water body. Some of these sensors are unique to the buoy subsystem and others are shared with other NEON subsystems, such as the wadeable stream sensor sets or terrestrial towers. Due to power, space, and data storage constraints on the buoy, the configuration of sensors deployed on a buoy may be different than those in other parts of NEON. Instrumentation: Vaisala HUMICAP Humidity and Temperature Probe - HMP 155
DOI: 10.48443/33zj-cq24
title: Temperature (PRT) in surface water (DP1.20053.001)
title: RELEASE-2023

description: This data product contains quality-controlled continuous surface water temperature readings from a sensor within each of NEON's wade-able stream sensor sets.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: Surface water temperature is measured using a platinum resistance thermometer that acquires resistance readings at 1 Hz. NEON coverts the raw resistance data product into temperature and reports at 1 minute intervals. Instrumentation: Thermometrics -- R032-00000048
DOI: 10.48443/7k86-ey55
title: Windspeed and direction above water on-buoy (DP1.20059.001)
title: RELEASE-2023

description: Wind speed and direction on buoys are measured 11 times per minute and reported as 2- and 30-minute mean values. The buoy wind sensor, and therefore data processing, is different than other wind sensors at aquatic met stations and on the terrestrial tower.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: The buoys are comprised of sensor sets which measure meteorological parameters over a water surface along with submerged sensors that measure physical and chemical parameters of the water body. Some of these sensors are unique to the buoy subsystem and others are shared with other NEON subsystems, such as the wadeable stream sensor sets or terrestrial towers. Due to power, space, and data storage constraints on the buoy, the configuration of sensors deployed on a buoy may be different than those in other parts of NEON. Instrumentation: RM Young 05108-45 Wind Monitor-HD Alpine; Honeywell HMR 3330
DOI: 10.48443/f1f5-rq28
title: Aquatic plant bryophyte chemical properties (DP1.20063.001)
title: RELEASE-2023

description: This data product contains the quality-controlled, field sampling metadata for aquatic plant and bryophyte carbon and nitrogen analyses. Benthic field samples are collected in wadeable streams, rivers, and lakes, and processed at the domain support facility. Aquatic plant and bryophyte chemistry samples are derived from clip harvest samples, collected once per year during the mid-summer aquatic biological sampling bout. Samples are collected from a known benthic area, separated by taxon in the domain lab, identified, then dried, ground, and shipped to a contracting laboratory for chemical analyses. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.
 
apl_plantExternalLabDataPerSample:  180

apl_biomass:  60

apl_clipHarvest:  60

apl_plantExternalLabQA: 240

asi_externalLabPOMSummaryData:  14
description: Aquatic plant and bryophyte clip harvest sampling is conducted once per year at aquatic sites (during the mid-summer aquatic biology window). Ten samples are collected per site if aquatic vegetation is present. In wadeable streams, clip harvest samples are collected near plant transect locations. In lakes and rivers, ten randomly selected points are sampled at depths that can be colonized by vegetation. These samples are partitioned in the domain support facility into subsamples for chemical analyses of carbon and nitrogen and shipped to an external facility. Instrumentation:
DOI: 10.48443/h2mp-bq47
title: Aquatic plant bryophyte macroalgae clip harvest (DP1.20066.001)
title: RELEASE-2023

description: This data product contains the quality-controlled, field sampling metadata and associated taxonomic and biomass data for aquatic plants, bryophytes, and macroalgae. Field samples are collected in wadeable streams, rivers, and lakes, and processed at the domain support facility. Clip harvest samples are collected once per year during the mid-summer aquatic biological sampling bout.  Additional presence/absence data are collected in lakes and rivers during bouts 1 and 3 (similar to point transect data for streams). During midsummer sampling, grab samples are collected from a known area, separated by taxon in the domain lab, identified, and processed for dry mass and ash-free dry mass. Specimens that cannot be identified with certainty are dried and sent to an expert taxonomist. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.
 
apl_biomass:  60

apl_clipHarvest:  60

apl_taxonomyProcessed:  240

apl_taxonomyRaw:  240

apc_morphospecies:  390
description: Aquatic plant, bryophyte, and macroalgae clip harvest sampling is conducted once per year at wadeable streams (during the mid-summer aquatic biology window) and three times per year in rivers and lake sites. During the first and third bouts in rivers and lakes, only presence/absence of vegetation is noted. During the mid-summer bout, samples are collected via quadrats in wadeable streams, and rake collection in lakes and rivers. Ten samples are collected per site if plants are present. In wadeable streams, clip harvest samples are collected near plant transect locations. In lakes and rivers, ten randomly selected points are sampled at depths that are colonized by plants. These samples are partitioned into samples for ash-free dry mass analyses and chemical analyses. Instrumentation:
DOI: 10.48443/dryb-xf51
title: Aquatic plant, bryophyte, lichen, and macroalgae point counts in wadeable streams (DP1.20072.001)
title: RELEASE-2023

description: This data product contains the quality-controlled, field sampling metadata and associated taxonomic and biomass data for aquatic plants, bryophytes, and macroalgae. Field data are collected at 10 permanent transects in wadeable streams three times per year. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.
 
apc_pointTransect:  60

apc_perTaxon:  60

apc_taxonomyProcessed:  240

apc_taxonomyRaw:  240

apc_voucher:  30

apc_voucherTaxonomyProcessed:  240

apc_voucherTaxonomyRaw:  240

apc_morphospecies:  390
description: Aquatic plant, bryophyte, lichen, and macroalgae point count data are collected three times per year at wadeable streams, during aquatic biology bout windows, roughly in spring, summer, and fall. Data are collected at ten permanent transect locations that are revisited during each sampling bout. Instrumentation:
DOI: 10.48443/cgqd-bm36
title: Benthic microbe community composition (DP1.20086.001)
title: RELEASE-2023

description: This data product contains the quality-controlled laboratory data and metadata for NEON's benthic bacterial, archaeal, and fungal community composition analysis derived from microbial sampling in wadeable streams. Taxon tables are derived from the 16S and ITS marker gene sequencing data product, NEON.DP1.20280. The DNA sequence data are processed using standard bioinformatics software to generate taxonomic data. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.

mcc\_benthicSeqVariantMetadata\_16S:  730

mcc\_benthicSeqVariantMetadata\_ITS:  730

mcc\_taxonTableLabSummary:  7
description: Benthic microbe samples are collected at the same time and location as periphyton (microalgae) samples three times per year in wadeable streams during aquatic biology bout windows, roughly in spring, summer and fall. Samples are collected using aseptic methods using the most appropriate sampler for the habitat and substratum type, including rock scrubs, grab samples, and epiphyton. Samples are collected in the two most dominant benthic habitat types (e.g. riffles, runs, pools, step pools). Cobble scrubs are filtered on 0.22 um Sterivex capsule filters, capped and flash-frozen in the field. Grab samples of sediment (silt, sand) or plant material/epiphyton are collected when appropriate. All samples are frozen on dry ice in the field and are shipped frozen to an analytical facility for DNA sequence analysis using primer sets targeting the small subunit of the ribosomal RNA gene. Sequence data undergo QAQC and are processed bioinformatically using an in-house pipeline to identify unique sequence variants in the data and to taxonomically identify each sequence variant. Instrumentation:
DOI: 10.48443/vx6a-be60
title: Chemical properties of groundwater (DP1.20092.001)
title: RELEASE-2023

description: This data product contains the quality-controlled, native sampling resolution data from NEON's groundwater chemistry sampling protocol. Subsamples are analyzed at NEON domain headquarters for alkalinity and acid neutralizing capacity (ANC); other subsamples are sent to external facilities for a broad suite of analytes, including dissolved and total nutrients and carbon, cations and anions, and general chemistry. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.
 
gwc_domainLabData:  60

gwc_externalLabData:  150

gwc_fieldData:  30

gwc_fieldSuperParent:  30

gwc_externalLabSummaryData:  14
description: Grab samples of groundwater are collected twice per year at NEON aquatic sites from permanently installed groundwater wells. There are up to eight small (2-in diameter) shallow (<100 ft depth) groundwater observation wells at each site, from which a subset of four wells are sampled. The field protocol used by NEON for collecting groundwater chemistry samples follows the general procedure for minimal drawdown sampling detailed by EPA report Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures (Puls and Barcelona, 1996). Sample handling and preparation portions of this protocol follow the general requirements set forth by the USGS National Water-Quality Assessment (NAWQA) Program (USGS 2006). (http://data.neonscience.org/api/v0/documents/NEON.DOC.002905vD). Instrumentation:
DOI: 10.48443/wf2d-h925
title: Chemical properties of surface water (DP1.20093.001)
title: RELEASE-2023

description: This data product contains the quality-controlled, native sampling resolution data from NEON's surface water chemistry sampling protocol. Subsamples are analyzed at NEON domain headquarters for alkalinity and acid neutralizing capacity (ANC); other subsamples are sent to external facilities for a broad suite of analytes, including dissolved and total nutrients and carbon, cations and anions, and general chemistry. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.

swc_domainLabData:  60

swc_externalLabData:  150

swc_fieldData:  30

swc_fieldSuperParent:  30

swc_externalLabSummaryData:  14
description: Grab samples of surface water at NEON aquatic sites are collected in streams and rivers 15- 26 times per year and 12 times per year in lakes. In streams and rivers, 12 samples are collected at regular intervals during the sampling season while the remaining 14 are collected on an irregular basis to capture major flow events. In lakes samples are collected approximately monthly and to capture ice-on and ice-off events. The field protocol used by NEON for collecting surface water chemistry samples follows the general requirements set forth by the 2011 USGS National Water-Quality Assessment (NAWQA) Program and the Arctic LTER standard operating procedures (SOP). Sample handling and preparation portions of this protocol follow the general requirements set forth by the USGS National Water-Quality Assessment (NAWQA) Program (USGS 2006). Instrumentation:
DOI: 10.48443/pf8r-wz28
title: Dissolved gases in surface water (DP1.20097.001)
title: RELEASE-2023

description: This data product contains the quality-controlled, native sampling resolution data from NEON's surface water dissolved gas sampling protocol. Water samples are equilibrated with air in the field. Samples of reference air (pre-equilibration) and equilibrated air (post-equilibration) are sent to external facilities for analysis to determine carbon dioxide, methane, and nitrous oxide concentrations in the gas samples. Data users should refer to the user guide for dissolved gases in surface water ([`NEON_dissolvGasInWater_UserGuide`](http://data.neonscience.org/api/v0/documents/NEON_dissolvGasInWater_userGuide_vA)) for suggestions on how to calculate dissolved concentrations of carbon dioxide, methane, and nitrous oxide in the surface waters from which samples were collected using Henry's Law and mass balance equations. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage.

Latency:
The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information.

sdg_externalLabData:  120

sdg_externalLabSummaryData:  14

sdg_fieldData:  30

sdg_fieldDataAir:  30

sdg_fieldDataProc:  30

sdg_fieldSuperParent:  30
description: The dissolved gas sampling protocol is completed in conjunction with the water chemistry and aquatic stable isotope protocol. Grab samples of surface water at NEON aquatic sites are collected in streams 26 times per year and 12 times per year in lakes. In streams, 12 samples are collected at regular intervals during the sampling season, while the remaining 14 are collected on an irregular basis to capture major flow events. In lakes, samples are collected approximately monthly and to capture ice-on and ice-off events. For more information see [NEON.DOC.001199](http://data.neonscience.org/api/v0/documents/NEON.DOC.001199vK). Instrumentation: