cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48443/38my-5k20
title: Surface water microbe cell count (DP1.20138.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from NEON's Surface water microbe cell count sample collection. Field samples are collected using a sterilized grab sampler in the water column of wadeable streams, rivers, and lakes in conjunction with standard recurrent surface water chemistry samples. Cell count field samples are collected 12 times per year in streams and 6 times per year in lakes and rivers, and are collected year-round unless ice cover is too thick to allow sampling. Samples are preserved in the field and shipped to a contracting lab for analysis. 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.

amc_fieldSuperParent:  30

amc_fieldCellCounts:  30

amc_cellCounts:  150

amc_cellCountsQA:  150

amc_cellCountsBlankQA: 150

amc_cellCountLabSummary:  14
description: Surface water cell count samples are collected at the same time and location as surface water chemistry samples once per month in wadeable streams (12 times per year) and every-other month in lakes and rivers (6 times per year). In wadeable streams, cell count samples are collected near the downstream S2 sensor location. In flow-through lakes (site TOOK), cell count samples are collected near the buoy, inlet, and outlet sensors, and sampling depth(s) is dependent on lake stratification. In seepage lakes (all lake sites other than TOOK), cell count samples are collected near the buoy, and sampling depth(s) is dependent on lake stratification. In rivers, cell count samples are collected near the buoy sensor. Samples are collected using a grab sampler, typically a sterilized 4 gallon jug in streams and a Kemmerer sampler in lakes. Samples are preserved with 1% formaldehyde in the field, and sent to an external facility for cell count analysis using propidium iodide (PI) staining and epifluorescence microscopy. Cell counts are enumerated using image analysis software. Instrumentation:
DOI: 10.48443/x835-sy94
title: Surface water microbe community composition (DP1.20141.001)
title: RELEASE-2025

description: This data product contains the quality-controlled laboratory data and metadata for NEON's surface water bacterial, archaeal, and fungal community composition analysis derived from microbial sampling in lakes, rivers and streams. Taxon tables are derived from the 16S and ITS marker gene sequencing data product, NEON.DP1.20282. 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\_swSeqVariantMetadata\_16S:  730

mcc\_swSeqVariantMetadata\_ITS:  730

mcc\_taxonTableLabSummary:  7
description: Surface water microbe samples are collected at the same time and location as surface water cell count samples and surface water chemistry samples, which occurs once per month in wadeable streams (12 times per year), and every other month in lakes and rivers (6 times per year). In wadeable streams, samples are collected near the downstream S2 sensor location. In lakes and rivers, samples are collected near the buoy sensor set at 1 sampling depth in unstratified systems and up to 3 depths in stratified lakes. Surface water grab samples are filtered on 0.22 um Sterivex capsule filters, capped and flash-frozen in the field. The filters are stored and 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/tg84-qy71
title: Surface water microbe community taxonomy (DP1.20141.002)
title: RELEASE-2025

description: This data product contains the quality-controlled laboratory data and metadata for NEON's soil bacterial, archaeal, and fungal community composition analysis derived from microbial sampling in lakes, rivers and streams. Taxon tables are derived from the 16S and ITS marker gene sequencing data product, NEON.DP1.20282.001. 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. 

mct\_sampleMetadata\_16S:  730 

mct\_sampleMetadata\_ITS:  730 

mct\_taxonTableLabSummary:  7
description: Surface water microbe samples are collected at the same time and location as surface water cell count samples and surface water chemistry samples, which occurs once per month in wadeable streams (12 times per year), and every other month in lakes and rivers (6 times per year). In wadeable streams, samples are collected near the downstream S2 sensor location. In lakes and rivers, samples are collected near the buoy sensor set at 1 sampling depth in unstratified systems and up to 3 depths in stratified lakes. Surface water grab samples are filtered on 0.22 um Sterivex capsule filters, capped and flash-frozen in the field. The filters are stored and 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/gr95-1c82
title: Periphyton, seston, and phytoplankton chemical properties (DP1.20163.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from NEON's aquatic periphyton and phytoplankton chemical analyses provided by a contracted lab. Benthic and water column field samples are collected in wadeable streams, rivers, and lakes three times per year during the growing season using the type of sampler most suitable to the habitat and substratum types present at the site. Samples are separated into aliquots at the domain support facility and filtered onto glass-fiber filters for chlorophyll, pheophytin, carbon, nitrogen, phosphorus, and carbon, nitrogen, and sulfur isotopes for analysis at external facilities. For additional details, see the user guide, protocols, science design, and laboratory SOPs 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.

alg_fieldData:  60

alg_domainLabChemistry:  60

alg_domainLabChemistryComp : 60

alg_algaeExternalLabDataPerSample:  180

alg_algaeDataPerSampleCompChl: 180

alg_algaeDataPerSampleCompCNPS: 180

alg_algaeExternalLabQA:  180

asi_externalLabPOMSummaryData:  14
description: Periphyton and phytoplankton samples are collected three times per year at wadeable stream, river, and lake sites during aquatic biology bout windows, roughly in spring, summer, and fall. Samples are collected using the most appropriate sampler for the habitat and substratum type, including rock scrubs, grab samples, and epiphyton, and water column samplers for phytoplankton. In wadeable streams, periphyton samples are collected in the two most dominant benthic habitat types (e.g. riffles, runs, pools, step pools). In lakes, water-column phytoplankton samples are collected near the buoy and littoral sensors using a Kemmerer sampler, and in littoral areas using the best benthic sampling method for the substratum type. In rivers, phytoplankton samples are collected near the buoy and two other deep-water locations using a Kemmerer or Van Dorn sampler, and in littoral areas using the most appropriate benthic sampling method for the substratum type. All samples are returned to the domain support facility for subsampling. Subsamples are  filtered onto glass-fiber filters then frozen (chlorophyll/pheophytin) or dried (C, N, P, isotopes) and shipped to external analytical facilities for analysis. Instrumentation:
DOI: 10.48443/d24k-p307
title: Periphyton, seston, and phytoplankton collection (DP1.20166.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from NEON's aquatic periphyton and phytoplankton collection and field metadata, as well as associated taxonomic,  and enumeration data provided by contracted labs. Benthic and water column field samples are collected in wadeable streams, rivers, and lakes three times per year during the growing season. Samples are separated into aliquots for taxonomic analysis at the domain support facility (preserved in glutaraldehyde or Lugol's iodine) for shipment to a external facilities, or filtered onto glass-fiber filters for biomass (ash-free dry mass). For additional details, see the user guide, protocols, science design, and lab SOPs listed in the Documentation section in this data product's details webpage.

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.

alg_fieldData:  60

alg_biomass:  60

alg_biomassComp: 60

alg_taxonomyProcessed:  210

alg_taxonomyProcessedComp: 210

alg_taxonomyRaw:  210

alg_taxonomyRawComp: 210

alg_qualityCheck:  210

alg_archive:  30

alg_biovolumes:  14

alg_identificationHistory: 7
description: Periphyton and phytoplankton samples are collected three times per year at wadeable stream, river, and lake sites during aquatic biology bout windows, roughly in spring, summer, and fall. Samples are collected using the most appropriate sampler for the habitat and substratum type, including rock scrubs, grab samples, and epiphyton. In wadeable streams, periphyton samples are collected in the two most dominant benthic habitat types (e.g. riffles, runs, pools, step pools). In lakes, water-column phytoplankton samples are collected near the buoy and littoral sensors using a Kemmerer sampler, and in littoral areas using the best benthic sampling method for the substratum type. In rivers, phytoplankton samples are collected near the buoy and two other deep-water locations using a Kemmerer or Van Dorn sampler, and in littoral areas using the most benthic sampling method for the substratum type. All field-collected samples are split into subsamples in the domain support facility, which are either processed in the facility (ash-free dry mass) or preserved and shipped to a contracting taxonomy laboratory. Diatoms and soft algae are identified and enumerated at the external taxonomy lab. Reference images are also collected. Slides and preserved subsamples are archived at the NEON Biorepository after analysis. Instrumentation:
DOI: 10.48443/meay-wb06
title: Reaeration field and lab collection (DP1.20190.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from NEON's wadeable stream reaeration sampling protocol. During most reaeration experiments, grab samples of stream water at NEON aquatic sites are collected in streams at 4 sampling locations downstream of a continuous injection of an inert gas (SF6) and conservative tracer (NaCl or NaBr). Background samples are collected prior to tracer injection and are analyzed for background salt tracer concentrations. Plateau samples are collected once the tracer concentration reaches a constant concentration (as measured by conductivity) and 5 replicate samples from each station are analyzed for both salt and gas tracer concentrations. Data users should refer to the user guide for reaeration and salt-based discharge see `NEON_ReaerSaltBasedQ_userGuide` for suggestions on how to calculate reaeration rates from the published data packages. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage. During some reaeration experiments, denoted by injectionType “model - slug” or “model - CRI”, only the conservative tracer is injected, either via slug or constant rate, (i.e., inert gas is not injected). See NEON Data Product User Guide to Reaeration (DP1.20190.001) and Salt-based Discharge Sampling (DP1.20193.001) for more detail about when and where model type injections are used.

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.

rea_backgroundFieldCondData:  30

rea_backgroundFieldSaltData:  30

rea_conductivityFieldData:  30

rea_externalLabDataGas:  120

rea_externalLabDataSalt:  120

rea_fieldData:  30

rea_plateauMeasurementFieldData:  30

rea_plateauSampleFieldData:  30

rea_widthFieldData:  30

sdg_externalLabSummaryData:  14
description: Tracer injections are completed 6 times per year to capture a range of flows at NEON wadeable stream sites. The first sampling station is located near sensor set #1 and the fourth sampling station is located near sensor set #2. Sampling stations #2 and #3 are approximately evenly spaced between sampling stations #1 and #4. The injection (drip) station is located far enough upstream of sampling station #1 that the tracer is well mixed within the stream channel for all sampling stations. Conductivity data loggers are located near sampling stations #1 and #4 to capture the rising limb and plateau (for constant rate injections) and falling limb (for slug injections) in situ conductivity values. Instrumentation: YSI Pro2030, HOBO U24
DOI: 10.48443/htaq-dh97
title: Riparian vegetation % cover (DP1.20191.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from the stream canopy cover component of NEON's riparian habitat assessment protocol. Using a modified convex densiometer, 1/3 (17 points) of the view field is used to measure the riparian canopy cover at wadeable stream sites. 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.

rip_percentComposition:  30
description: Each aquatic site is surveyed once per year within the site-specific peak greenness window. As part of the survey percent riparian cover is collected at wadeable stream and river sites, but not collected at lake sites. Protocols are based on the U.S. EPA's Statewide Riparian Mapping protocol.
Ten riparian transects are evenly distributed throughout the 1km wadeable stream  sampling reach.  At wadeable stream sites, at each transect, riparian canopy percent cover measurements are taken at 3 points along each transect: the wetted center of the stream, 0.3m from the wettted edge of the left bank, and 0.3 m from wetted edge of the right bank.  At the center stream sampling point, 4 densiometer readings are taken facing upstream, downstream, river right, and river left; at the left and right banks a single densiometer reading is taken, facing the bank. 
 At river sites, percent canopy cover is collected at 1 point located about 0.3m from the wetted river edge at five of ten paired plots.  The plot nearest the river thalweg is selected and the following measurements are collected from the boat at 0.3m above the water:  upstream, downstream, river right, and river left. Instrumentation:
DOI: 10.48443/tphq-yw03
title: Salt-based stream discharge (DP1.20193.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data for NEON's Salt-based Discharge data product. The data for this data product is collected as part of the wadeable stream reaeration sampling protocol. Salt concentration data from both constant rate, NaCl or NaBr, and slug, NaCl, injections at wadeable stream sites are published as part of this data product. Data users should refer to the user guide for reaeration and salt-based discharge (see `NEON_ReaerSaltBasedQ_userGuide`) for suggestions on how to calculate discharge values from the published data packages. 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.

sbd_backgroundFieldCondData:  30

sbd_backgroundFieldSaltData:  30

sbd_conductivityFieldData:  30

sbd_externalLabDataSalt:  120

sbd_fieldData:  30

sbd_plateauMeasurementFieldData:  30

sbd_plateauSampleFieldData:  30

sdg_externalLabSummaryData:  14
description: Tracer injections of conservative salt are completed 6 times per year to capture a range of flows at NEON wadeable stream sites as part of the wadeable stream reaeration protocol. The first sampling station is located near sensor set #1 and the fourth sampling station is located near sensor set #2. Sampling stations #2 and #3 are approximately evenly spaced between sampling stations #1 and #4. The injection (drip) station is located far enough upstream of sampling station #1 that the tracer is well mixed within the stream channel for all sampling stations. Conductivity data loggers are located near sampling stations #1 and #4 to capture the rising limb and plateau (for constant rate injections) and falling limb (for slug injections) in situ conductivity values. For more information see AOS Protocol and Procedure: Reaeration in Streams [NEON.DOC.000693](http://data.neonscience.org/api/v0/documents/NEON.DOC.000693vH). Instrumentation: YSI Pro2030, HOBO U24
DOI: 10.48443/2rce-s314
title: Sediment chemical and physical properties (DP1.20194.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from NEON's aquatic sediment collection and field metadata, as well as associated chemical data (nutrients, carbon, heavy metals) and physical properties (sediment size and texture) provided by a contracted lab. Organic contaminants were analyzed prior to 2020. In 2022, sediment began to be archived for future analysis. Sediment field samples are collected in wadeable streams, rivers, and lakes 2 times per year (spring and fall). Samples are collected from several depositional zones, homogenized, subsampled, and shipped to an external lab. 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.

asc_externalLabData:  90

asc_externalLabSummary:  14

asc_fieldDataPoint:  30

asc_fieldDataStation:  30

asc_fieldDataZone:  30
description: Sediment samples are collected from 2 stations at each site: at wadeable streams and non-wadeable (large river) sites are divided in half longitudinally and sediment is collected throughout each half (approx. 500 m reach per station).  In lakes, there are also 2 stations, the first near the buoy (the deep center point in the basin, called ‘c0’ meaning ‘center’), and the second near the near-shore infrastructure (about 1-2 m deep, called ‘in’ meaning ‘in-shore’).  Within each station, sediments are collected and homogenized from depositional zones at both stations 2 times per year during the spring and fall aquatic biological sampling bouts. Homogenized aggregate samples are subsampled and shipped to an external lab for analysis, or to the NEON Biorepository for archiving. Instrumentation:
DOI: 10.48443/ncx1-5p90
title: Stable isotopes in surface water (DP1.20206.001)
title: RELEASE-2025

description: This data product contains the quality-controlled, native sampling resolution data from NEON's stable isotopes in surface water sampling protocol. Filters containing suspended particulate organic matter (POM) are sent to external facilities for analysis to determine 15N/14N and 13C/12C particulate isotope ratios and particulate carbon and nitrogen masses. Water samples are sent to external facilities for analysis to determine 18O/12O and 2H/1H water isotope ratios. 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.

asi_externalLabH2OIsotopes:  120

asi_externalLabPOMSummaryData:  14

asi_externalLabSummaryData:  14

asi_fieldData:  30

asi_fieldSuperParent:  30

asi_POMExternalLabDataPerSample:  180
description: The aquatic stable isotope sampling protocol is completed in conjunction with the water chemistry and dissolved gas protocol. 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. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage. Instrumentation:
DOI: 10.48443/7hxn-ng08
title: Temperature of groundwater (DP1.20217.001)
title: RELEASE-2025

description: Groundwater plays an important role in modulating temperature of surface water, which is critical to habitat quality and ecosystem function. NEON measures groundwater temperature at high temporal resolution.  Three to eight wells are available per aquatic site.  From NEON groundwater elevation measurements, the magnitude and direction of groundwater flow can be calculated, which will help to inform the heat flux between groundwater and surface water. This data product includes continuous quality-controlled groundwater temperature captured every 5 minutes and are 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. Temperature of groundwater is measured in a 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