cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48443/zwvk-ph71
title: Soil temperature (DP1.00041.001)
title: RELEASE-2026

description: Soil temperature is measured at various depths below the soil surface from approximately 2 cm down to 200 cm at non-permafrost sites (down to 300 cm at Alaskan sites). Soil temperature influences the rate of biogeochemical cycling, decomposition, and root and soil biota activity. In addition, soil temperature can impact the hydrologic cycle since it controls whether soil water is in a liquid or solid state. Measurements are made in vertical profiles consisting of up to nine depths in all five instrumented soil plots at each terrestrial site, and presented as 1-minute and 30-minute averages.

Latency:
Data collected in any given month are published during the second full week of the following month.

This data product is not currently available at the PUUM site (Hawaii) due to the initial soil characterization indicating the soil was too shallow to allow the standard sensor to be installed. An alternative sensor was installed, but it is not currently compatible with the data processing pipeline. Future upgrades to the data processing pipeline will allow the data product to be produced, including retroactively, but this is not expected to occur soon. In the interim, raw sensor data are available upon request via the NEON Contact Form, but have not undergone any quality control, quality assurance, or data flagging.

At four Alaskan sites (HEAL, BONA, TOOL, and BARR) the sensors experience frost heaving which regularly changes the measurement depths. New measurement depths are recorded when technician time and other priorities allow and depths are updated, but sensor depths may change between remeasuring events. In addition, the soil plots at HEAL have been subsiding faster than the surrounding area which may alter their representativeness of the overall site.
description: When possible the soil plots were arranged in a transect with the first plot approximately 15-40 m from the tower in the expected dominant airshed. The middle of airshed was used as the transect vector and plot spacing was based on the distance required for surface soil temperature and moisture measurements to be spatially independent at the 1 hectare scale during site characterization (capped at approximately 40 m due to logistical constraints). Soil plots were microsited as necessary to avoid obstacles (e.g., boulders, streams, and paths) and more compact plot layouts were used at small sites. Soil temperature is measured at up to nine depths within each plot, with the mid-point of the shallowest sensors at approximately 2, 6, 16, and 26 cm. Depths for deeper sensors vary among sites and are based on megapit soil horizon data (NEON.DP1.00097) and depth to restrictive feature (see NEON.DOC.003146). Instrumentation: Thermometrics - Climate RTD 100-ohm Probe
DOI: 10.48443/3jcp-qe58
title: Small mammal sequences DNA barcode (DP1.10076.001)
title: RELEASE-2026

description: This data product contains the quality-controlled laboratory metadata and QA results for NEON's cytochrome oxidase I (COI) barcoding of small mammal sequences. The DNA barcoding procedure involves the non-distructive collection of tissue from live specimens in the field, extracting and sequencing DNA from the tissue, and matching that sequence data to sequences from previously identified voucher specimens. DNA analysis serves a number of purposes, including verification of taxonomy of specimens that do not receive expert identification, clarification of the taxonomy of rare or cryptic species, and characterization of diversity using molecular markers. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage. These queries will also provide links to the actual sequence data, which are publicly available on the [Barcode of Life Data System](http://www.boldsystems.org/) (BOLD) website. The sequence data can be obtained by following the links from the NEON data portal, or by directly querying NEON data sets on the BOLD server. From the NEON portal, the link "BOLD Project: Small Mammal sequences DNA barcode" redirects to a page on the BOLD public data portal for the queried data. This is a dynamic link and will automatically update based on the user query.

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.

mam_BOLDcollectionData:  375

mam_BOLDspecimenDetails:  375

mam_BOLDtaxonomy:  375

mam_BOLDvoucherInfo:  375
description: Up to 240 ear punches will be collected from each target and opportunistic species per site per year. These tissues will be preserved in an appropriate tissue vial and up to 95 tissue samples per domain will be shipped to an external lab. DNA will be extracted and target sequences amplified via PCR. Barcodes of cytochrome oxidase I will be generated per specimen. Instrumentation:
DOI: 10.48443/9g4s-hq52
title: Plant presence and percent cover (DP1.10058.001)
title: RELEASE-2026

description: This data product contains the quality-controlled, native sampling resolution data from NEON's plant diversity sampling. The presence and percent cover of species is documented in square, multi-scale plots. The presence and percent cover of plant species and ground cover is observed in six 1m2 subplots per plot. The presence of species is observed in six 10m2 subplots and four 100m2 subplots per plot, which can be combined for a list of species at the 400m2 plot scale. For additional details, see the data product user guide, protocol, 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.

div_10m2Data100m2Data:  135

div_1m2Data:  135

div_geneticarchive:  120

div_voucher:  215

div_identificationHistory: 7
description: Up to thirty Distributed Plots and three Tower Plots are measured at each site. Plots are sampled annually at most sites to correspond with peak greenness, and twice a year at select sites with bimodal peaks in greenness and species composition. The multi-scale plot design is consistent with methods of the Carolina Vegetation Project. The files provided with this data product also include records of plant vouchers and foliar tissue for analyses by the ecological community that are stored at external archives, and a table to facilitate the resolution of species not identified when encountered in the field during observation and data entry. Instrumentation:
DOI: 10.48443/kjyf-eq90
title: Relative humidity (DP1.00098.001)
title: RELEASE-2026

description: This data product contains the relative humidity, air temperature, and  dew point/frost point temperature measurements made at all NEON 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 sensors are installed at the top level of the tower infrastructure, at the soil array and on the aquatic met station at a standard height above ground level. Instrumentation: Vaisala HUMICAP Humidity and Temperature Probe - HMP 155
DOI: 10.48443/1dv2-9s65
title: Surface water microbe community composition (DP1.20141.001)
title: RELEASE-2026

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/qm1b-6d55
title: Stable isotopes in precipitation (DP1.00038.001)
title: RELEASE-2026

description: This data product contains the quality-controlled, native sampling resolution data from NEON's stable isotopes in wet deposition protocol. Deuterium and oxygen-18 concentrations are measured in precipitation samples.

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_externalLabSummaryData:  14

wdi_collection:  30

wdi_collectionIso:  30

wdi_collectionIsoTest:  30

wdi_isoPerSample:  120

wdp_sensor:  30
description: Hydrogen and oxygen stable isotopes are sampled in conjunction with wet deposition chemistry (DP1.00013.001). Samples are collected in a climate controlled wet deposition collector located at the tower top of terrestrial sites, and at the meteorologic tower of select aquatic sites. The automated assembly detects precipitation with an optical sensor and opens to collect wet deposition during all rain events. Every two weeks samples are retrieved, filtered, and sent for analysis. Instrumentation: N- Con Systems Company Wet Deposition Collector, Manufacture Model No: NEON 00-127-7
DOI: 10.48443/p69b-5e50
title: Single aspirated air temperature (DP1.00002.001)
title: RELEASE-2026

description: Single aspirated air temperature measurements, available as one- and thirty-minute averages of 1 Hz observations. Temperature is one of the most fundamental physical measurements.  It is a primary driving factor for countless physical, chemical, and biological processes. The single aspirated sensor assembly comprises an individual Platinum Resistance Thermometer (PRT) housed within an aspirated shield.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: Multiple Single Aspirated Air Temperature (SAAT) assemblies are deployed at tower sites. SAAT assemblies are located on each boom arm below the top of the tower. A single SAAT assembly is deployed at aquatic sites and is located on the aquatic met station 3m above ground level. Instrumentation: Thermometrics Climate RTD 100 Ω Probe, housed within a Met One 076B fan aspirated radiation shield
DOI: 10.48443/wnw4-qs21
title: Soil physical and chemical properties, distributed initial characterization (DP1.10047.001)
title: RELEASE-2026

description: This data product contains quality-controlled, native sampling resolution taxonomic, physical, and chemical data from soils measured during the course of an initial soil characterization effort at each NEON site. This effort was executed by the Soil Science Division of the Natural Resources Conservation Service (NRCS), in partnership with the USDA Agriculture Research Service (ARS). For additional details, see the user guide listed in the Documentation section below. Queries for this data product will return field collection metadata, soil taxonomy, bulk density, particle size distribution, and a host of geochemical measurements on a per horizon basis, along with a summary table of external lab detection limits and accuracy in the expanded package. Associated with these data are soil pedon descriptions and narrative summary documents, which place the plot-level data into site-level context. These documents can be found in the [NEON Document Library](http://data.neonscience.org/documents), in the folder Soil Characterization Summaries > Distributed plots. Additional soil material collected during this effort is archived and [available upon request](https://www.neonscience.org/samples/soil-archive).

Latency:
Data were collected once, at the establishment of each site. Data were published within one year of collection, and future collections at existing sites are not expected.
description: At each site, up to 4 Tower and 30 Distributed plots were sampled, with number of plots determined by NRCS based on site variability and number of soil map units present. In most Distributed base plots, a single 1 m x 1 m x 1 m soil pit was excavated. In Tower plots and sites where pit sampling is not permitted, several 10 cm diameter, 1 m deep cores were collected from within a 1 m x 1 m square (where possible). Upon excavating a pit or collecting cores, NRCS described the profile and all major horizons, assessed coarse fragment volumes, collected bulk density samples (most often by the clod method), then collected enough material to conduct all physical and geochemical laboratory analyses. Field sampling and descriptions followed the methods outlined in the NRCS Field Book for Describing and Sampling Soils, version 3.0. Laboratory analyses were conducted at the Kellogg Soil Survey Laboratory in Lincoln, Nebraska following the standard operating procedures outlined in the Soil Survey Laboratory Methods Manual, Report No. 42, Version 5, 2014. Some horizons do not have bulk density measurements - this includes plots and sites where cores were taken instead of pits and horizons where the bulk density sample was destroyed, lost, or of poor quality. Instrumentation:
DOI: 10.48443/wsbx-a475
title: Particulate mass (DP1.00101.001)
title: RELEASE-2026

description: This product contains the quality-controlled, native sampling resolution data from NEON's particulate mass sampling protocol. Samples are collected by an automated assembly that pulls air through a quartz microfiber filter with a porosity of 10 micrometers, to collect PM10. Filters are weighed at high precision pre- and post-deployment to determine dust deposition mass. In addition to determining mass concentration of PM10, filters from the particulate mass analyzers will be archived in laboratory storage. Subsamples of the filters will be available to science community upon request to enable the assessment of chemical and nutrient inputs in the region.

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.

dpm_field:  30

dpm_lab:  90

dpm_sensor:  30

dpm_filterBlank: 90
description: Particulate collection filters (Whatman 1851-8531 quartz microfiber filters) are deployed for two weeks in a HiVol 3000 collector at the top of NEON terrestrial towers at select sites. Filters are weighed pre- and post-deployment in an external facility. Throughout deployment, the HiVol collector records pressure, temperature, and the volume of air sampled. Instrumentation: Ecotech HiVol 3000
DOI: 10.48443/28zn-sq37
title: Specific conductivity of surface water (DP1.20008.001)
title: RELEASE-2026

description: Specific conductance in surface water is measured once per minute at all NEON lake littoral locations and select wadeable stream sites. This data product contains continuous, quality-controlled, surface water specific conductivity. This data product is available as 5-minute and 30-minute averages.

Latency:
Data collected in any given month are published during the second full week of the following month.
description: Aqua TROLL 200 vented pressure transducers measure specific conductivity, temperature(DP1.20054), and pressure, which is converted to elevation of surface water (DP1.20016). In lakes, the transducers are collocated with sensors that measure photosynthetically active radiation below the water surface (DP1.20261). The in-stream transducers are collocated with the instream sensor sets that house water quality sensors (DP1.20288), nitrate sensors (DP1.20033), and (PRT) platinum resistance thermometers (DP1.20053). NEON pressure transducer sensors are switched to logging mode at Toolik Lake (TOOK) and Oksrukuyik Creek (OKSR) during ice-on periods due to low power availability and data is manually retrieved from the sensors at ice-off. Instrumentation: In-Situ, inc. - Aqua TROLL 200
DOI: 10.48443/bxxq-yc95
title: Ground beetle sequences DNA barcode (DP1.10020.001)
title: RELEASE-2026

description: This data product contains the quality-controlled laboratory metadata and QA results for NEON's cytochrome oxidase I (COI) barcoding of ground beetles sequences. The DNA barcoding procedure involves the removal of tissue, extracting and sequencing DNA from the tissue, and matching that sequence data to sequences from previously identified voucher specimens. DNA analysis serves a number of purposes, including verification of taxonomy of specimens that do not receive expert identification, clarification of the taxonomy of rare or cryptic species, and characterization of diversity using molecular markers. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage. Queries for this data product will return metadata tables formatted for submission to the Barcode of Life Database. These queries will also provide links to the actual sequence data, which are publicly available on the [Barcode of Life Data System](http://www.boldsystems.org/) (BOLD) website. The sequence data can be obtained by following the links from the NEON data portal, or by directly querying NEON data sets on the BOLD server. From the NEON portal, the link "BOLD Project: Ground beetle sequences DNA barcode" redirects to a page on the BOLD public data portal for the queried data. This is a dynamic link and will automatically update based on the user query.

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.

bet_BOLDcollectionData:  614

bet_BOLDspecimenDetails:  614

bet_BOLDtaxonomy:  614

bet_BOLDvoucherInfo:  614
description: Ground beetle legs are subsampled from individual specimens collected as part of the Ground beetles sampled from pitfall traps (DP1.10022.001) data product. Up to 10 individuals per species per site for a total of up to 95 individuals per site per year are selected for barcoding. Beetles that are rare, particularly difficult to identify, or poorly represented in previous collection events are prioritized for DNA sequencing. Only beetle specimens that have been identified by an expert taxonomist are eligible for DNA barcoding.  Leg tissue is preserved in an appropriate tissue vial and shipped to an external lab, where DNA is extracted and target sequences amplified via PCR. Barcodes of cytochrome oxidase I are generated per specimen. Instrumentation:
DOI: 10.15468/dl.rjf9cr
title: Occurrence Download

description: A dataset containing 17 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Polydontes perplexa"
 ]
}

 The dataset includes 17 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005708-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9856yz
title: Occurrence Download

description: A dataset containing 54 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((117.386 6.186136, 117.315329 6.180565, 117.246402 6.163989, 117.180921 6.136819, 117.1205 6.099723, 117.06663 6.053618, 117.020637 5.999641, 116.983653 5.939123, 116.956587 5.873556, 116.940101 5.804556, 116.934599 5.733822, 116.940211 5.663097, 116.956796 5.594121, 116.983941 5.528593, 117.020975 5.468123, 117.066985 5.4142, 117.120838 5.368149, 117.181208 5.331102, 117.246611 5.30397, 117.315439 5.28742, 117.386 5.281857, 117.456561 5.28742, 117.525389 5.30397, 117.590792 5.331102, 117.651162 5.368149, 117.705015 5.4142, 117.751025 5.468123, 117.788059 5.528593, 117.815204 5.594121, 117.831789 5.663097, 117.837401 5.733822, 117.831899 5.804556, 117.815413 5.873556, 117.788347 5.939123, 117.751363 5.999641, 117.70537 6.053618, 117.6515 6.099723, 117.591079 6.136819, 117.525598 6.163989, 117.456671 6.180565, 117.386 6.186136))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 54 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005709-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.