cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.595m5a
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982045","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024132-241024112534372/datasets/export for details.
DOI: 10.15468/dl.hejdwg
title: Occurrence Download

description: A dataset containing 945 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Chile",
 "TaxonKey is one of (Leopardus colocolo (Molina, 1782), Leopardus colocola (Molina, 1782), Leopardus colocolo wolffsohni (García-Perea, 1994))"
 ]
}

 The dataset includes 945 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024133-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qybk2w
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982061","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024135-241024112534372/datasets/export for details.
DOI: 10.15468/dl.zvece4
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982052","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024134-241024112534372/datasets/export for details.
DOI: 10.15468/dl.qvaezz
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "TaxonKey is one of (Physospermopsis handelii (H.Wolff ex Hand.-Mazz.) Pimenov & Kljuykov)",
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is one of (MANAGED, INTRODUCED)"
 ]
 }
 },
 "EstablishmentMeans is null"
 ]
 }
 ]
}

 The dataset includes 6 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024137-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7e4t9j
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982064","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024136-241024112534372/datasets/export for details.
DOI: 10.21223/itv1aa
title: Dataset for: Evaluation of Micronutrient Concentrations in Advanced and Promising Potato Clones in Ayacucho - 2006

description: In 2006, 82 advanced and promising potato clones, characterized by their colored flesh, were evaluated in the locality of San Pedro de Quicato, in the community of Chontaca, Huamanga province, Ayacucho. The study focused on assessing micronutrient concentrations. A completely randomized design with two replications was employed to ensure the robustness of the results. Micronutrient concentrations were measured using spectrophotometry, providing detailed insights into the nutritional properties of these promising clones.
DOI: 10.15468/dl.9wcbsa
title: Occurrence Download

description: A dataset containing 39 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Africa",
 "OccurrenceStatus is Present",
 "TaxonKey is Pinus nigra J.F.Arnold"
 ]
}

 The dataset includes 39 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024138-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.at55n7
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982067","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024139-241024112534372/datasets/export for details.
DOI: 10.15468/dl.wyafxa
title: Occurrence Download

description: A dataset containing 145829 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Bubo bubo (Linnaeus, 1758)"
 ]
}

 The dataset includes 145829 records from 625 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023973-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bfvb7d
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982072","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024140-241024112534372/datasets/export for details.
DOI: 10.5678/zpzg-x648
title: Smallholder field polygons and crop-types from western Kenya for Long Rain Season 2023
title: field polygons and crop-types western kenya long rain
DOI: 10.5678/j74k-n634
title: Smallholder field polygons and crop-types from western Kenya for Short Rain Season 2023
title: field polygons and crop-types western kenya short rain
DOI: 10.21223/4m9jly/cegwnp
title: TVIT200612_ANTA_Cusco_LNP_II.xls

description: :unav
DOI: 10.21223/4m9jly/dusvq7
title: 01_Data_minerals_Anta_Cusco_2006.tab

description: :unav
DOI: 10.21223/4m9jly/mundqa
title: 02_Data_VitaminC_Anta_Cusco_2006.tab

description: :unav
DOI: 10.21223/4m9jly/o4fbg5
title: TMIN200612_ANTA_Cusco_LNP_II.xls

description: :unav
DOI: 10.21223/4m9jly
title: Dataset for: Micronutrient and Vitamin C Analysis of Native Varieties from Anta, Cusco - 2006

description: Forty-one native local varieties from Anta, Cusco were evaluated in 2006 under a completely randomized design. Spectrophotometry was used, with two replications, to determine the content of micronutrients and vitamin C.
DOI: 10.21223/4m9jly/qkncnv
title: 03_Material_list_Anta_Cusco_2006.tab

description: :unav
DOI: 10.21223/4m9jly/vssans
title: 04_Data_dictionary.tab

description: :unav
DOI: 10.15468/dl.77ta5n
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982074","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024143-241024112534372/datasets/export for details.
DOI: 10.15468/dl.2hzy6h
title: Occurrence Download

description: A dataset containing 23 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "TaxonKey is one of (Physospermopsis muliensis R.H.Shan & S.L.Liou)",
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is one of (MANAGED, INTRODUCED)"
 ]
 }
 },
 "EstablishmentMeans is null"
 ]
 }
 ]
}

 The dataset includes 23 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024144-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.sbg7p7
title: Occurrence Download

description: A dataset containing 6429 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Rostellularia adscendens (R.Br.) R.Barker",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 6429 records from 39 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024142-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.27605676
title: Oxysterols[M1] Suppress Release of DNA from Granulocytes into Extracellular Space After Stimulation with PhorbolMyristate Acetate[M1]The article title is different from the one submitted online at susy.mdpi.com. Please confirm which one is correct.

description: In the present study, we examined the effects of four oxysterols on the release of DNA and proteins from neutrophils. Unexpectedly, oxysterols, but not cholesterol, suppressed DNA release from neutrophils. Furthermore, treatment of cells with methyl-β-cyclodextrin (MβCD) that extracts sterol compounds from cell membranes to form inclusion complexes enhanced DNA release from PMA-stimulated cells. These observations suggest that oxysterols may act as modulators of neutrophil activation.
DOI: 10.15468/dl.spd7bs
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982089","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024145-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6byw4t
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982097","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024146-241024112534372/datasets/export for details.
DOI: 10.21223/jx6uon
title: Dataset for: Micronutrient and Vitamin C Analysis of Native Varieties from Huancavelica - 2006

description: Eighteen samples of native local varieties from the localities of Ccasapata and Santa Rosa in Huancavelica were analyzed in 2006 to assess the concentrations of micronutrients and vitamin C. The nutrient analysis was conducted using spectrophotometry. The study employed a completely randomized design (CRD) with two replications to determine the content of these nutrient
DOI: 10.21223/jx6uon/7gfjnd
title: TVIT200612_CCASAP_Huancavelica_LNP.xls

description: :unav
DOI: 10.21223/jx6uon/82y7an
title: 04_Data_dictionary.tab

description: :unav
DOI: 10.21223/jx6uon/izwcdv
title: TMIN200612_CCASAP_Huancavelica_LNP.xls

description: :unav
DOI: 10.21223/jx6uon/kkyt9x
title: 02_Data_VitaminC_CCASAP_Huancavelica_2006.tab

description: :unav
DOI: 10.21223/jx6uon/oly8vj
title: 03_Material_list_CCASAP_Huancavelica_2006.tab

description: :unav
DOI: 10.21223/jx6uon/sqlo8a
title: 01_Data_minerals_CCASAP_Huancavelica_2006.tab

description: :unav
DOI: 10.15468/dl.udxzgb
title: Occurrence Download

description: A dataset containing 19584 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Ketupa zeylonensis (J.F.Gmelin, 1788)"
 ]
}

 The dataset includes 19584 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024147-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xwvndr
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982108","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024150-241024112534372/datasets/export for details.
DOI: 10.15468/dl.qwrdbr
title: Occurrence Download

description: A dataset containing 33 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "TaxonKey is one of (Physospermopsis nana (Franch.) Pimenov & Kljuykov)",
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is one of (MANAGED, INTRODUCED)"
 ]
 }
 },
 "EstablishmentMeans is null"
 ]
 }
 ]
}

 The dataset includes 33 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024151-241024112534372/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hw55pz
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982116","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024152-241024112534372/datasets/export for details.
DOI: 10.15468/dl.vgeb72
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"TAXON_KEY","value":"3982122","matchCase":false},{"type":"equals","key":"OCCURRENCE_STATUS","value":"PRESENT","matchCase":false},{"type":"equals","key":"HAS_COORDINATE","value":"true","matchCase":false},{"type":"equals","key":"HAS_GEOSPATIAL_ISSUE","value":"false","matchCase":false},{"type":"lessThan","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"in","key":"YEAR","values":["2008","2009","2010","2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022","2023","2024"],"matchCase":false},{"type":"in","key":"BASIS_OF_RECORD","values":["LIVING_SPECIMEN","HUMAN OBSERVATION","OBSERVATION","OCCURRENCE","MACHINE_OBSERVATION"],"matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024153-241024112534372/datasets/export for details.
DOI: 10.5066/p9a213h6
title: Turbidity and Suspended Sediment Concentration Data from a Laboratory Mixing Tank Experiment 2023 (ver. 1.1, November 2024)

description: Four dams on the Klamath River that created Iron Gate Reservoir and Copco Lake in Siskiyou County, California, and John C. Boyle Reservoir, in Klamath County, Oregon, are scheduled for removal in early 2024. The U.S. Geological Survey (USGS) will deploy high-range turbidity sensors to compute continuous suspended sediment concentration (SSC) before, during, and following the scheduled dam removals. SSCs in the Klamath River are expected to be extreme during the dam removal process because of mobilization of fine-grained sediments that settled in the upstream reservoirs. Extreme SSC values are unlikely to occur unless during an extreme event, and are difficult to predict. Therefore, the USGS did controlled laboratory experiments to simulate extreme SSC values to establish the upper limits of the turbidity-SSC rating being developed to estimate SSC and transport along the Klamath River during and after dam removals. The experiments used multiple field -deployed Observator Analite NEP-5000-180 backscattering turbidity sensors in custom observing ranges up to 10,000 SDVB (styrene divinylbenzene beads) Backscatter Units (SBU), a Sequoia Scientific LISST-ABS acoustic backscattering SSC sensor with an upper observing limit of 30 g/L, and a YSI EXO2 with turbidity probe with an upper observing limit of 4,000 formazin nephelometric units (FNU). Prior to the full-scale tank experiments, four experiments were done using bench-top equipment to test the effect of deionized water, tap water, and native water on the turbidity-SSC relation. Four experiments were done using a domed-bottom mixing tank with a range of SSC values from 0 milligrams per Liter (mg/L) up to 29129 mg/L.