cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.7289/v5hm56qr
title: Discrete profile measurements of dissolved inorganic carbon, total alkalinity, pH and other hydrographic and chemical data obtained during R/V Roger Revelle Repeat Hydrography and SOCCOM Cruise in the Indian Ocean and Southern Ocean: GO-SHIP Section I08S (EXPOCODE 33RR20160208), from 2016-02-08 to 2016-03-16 (NCEI Accession 0171457)

description: This dataset includes discrete profile measurements of dissolved inorganic carbon, total alkalinity, pH (on total scale), temperature, salinity, oxygen, nutrients, chlorofluorocarbons and other chemical measurements during R/V Roger Revelle Repeat Hydrography and SOCCOM Cruise in the Southern and Indian Oceans: GO-SHIP Section I08S (EXPOCODE 33RR20160208), from 2016-02-08 to 2016-03-16. The instruments used to collect these data include CTD and Niskin bottle. These data were measured by Dr. Rik Wanninkhof of NOAA Atlantic Oceanographic and Meteorological Laboratory, Dr. Andrew Dickson of University of California - San Diego; Scripps Institution of Oceanography and Craig A. Carlson of University of California - Santa Barbara.
DOI: 10.7289/v5z036gp
title: The impacts of ocean acidification and multiple estuarine stressors on early-life stage of bivalve shellfish from a laboratory experiment study (NCEI Accession 0172041)

description: This dataset contains results (e.g., mean survival, growth, and developmental rate etc.) from laboratory-based trials involving early-life stage (larval and juvenile) bivalve shellfish exposed to: 1) diurnal fluctuations in carbonate chemistry and dissolved oxygen; (2) chronic exposures to multiple, estuarine stressors (e.g., low pH, low DO, and thermal stress); and (3) transgenerational acidification. Results from diurnal experiments indicated that exposure to ideal conditions (e.g., pH = 7.9; DO &gt; 7 mg/L) during the daytime did not offset the harmful impacts of acidification and hypoxia experienced by both larval- and juvenile-staged bivalve shellfish during non-daylight hours. In addition, laboratory studies involving chronic (i.e., sustained conditions) exposures to several estuarine stressors revealed that the combined and interactive impacts of multiple, co-occurring stressors can be more detrimental than singular exposures to individual stressors, outcomes that cannot be predicted based upon laboratory investigations using individual, separate exposures. Finally, unlike previous studies with other bivalve species, parental exposure environmentally relevant levels of coastal acidification does not mitigate the harmful effects manifested among next-generation offspring exposed to similar levels of acidification and, in fact, rendered offspring more sensitive to low pH and multiple, additional stressors.
DOI: 10.5281/zenodo.17257298
title: Polydispersity and Fluctuation-Induced Forces between Interfacial Colloids

description: **Version 2.0 (Correction Note):** This dataset is a corrected version of the original record. The previous version (v1.0) contained a significant numerical error in the calculation of the three-body interaction for mobile colloids. The data files in this new version have been fully corrected and should be used for any analysis. The previous version is preserved for the scientific record but should be considered obsolete.







Dataset Description








file name
description
scenario
h/R2
column1
column2


data2bh5.csv
two-body interaction
bobbing
5
R1/R2
Δ2


data2bth5.csv
two-body interaction
bobbing+tilting
5
R1/R2
Δ2


data2fixedh5.csv
two-body interaction
fixed
5
R1/R2
Δ2


datab1i1h1.csv
three-body interaction
bobbing
1
R1/R2
Δ123


datab1i1h10.csv
three-body interaction
bobbing
10
R1/R2
Δ123


datab1i1h5.csv
three-body interaction
bobbing
5
R1/R2
Δ123


databt1i1h1.csv
three-body interaction
bobbing+tilting
1
R1/R2
Δ123


databt1i1h10.csv
three-body interaction
bobbing+tilting
10
R1/R2
Δ123


databt1i1h5.csv
three-body interaction
bobbing+tilting
5
R1/R2
Δ123


dataf1i1h1.csv
three-body interaction
fixed
1
R1/R2
Δ123


dataf1i1h10.csv
three-body interaction
fixed
10
R1/R2
Δ123


dataf1i1h5.csv
three-body interaction
fixed
5
R1/R2
Δ123


datamultipolesbob2.csv
two-body (monodisperse)
bobbing
-
h/R
N


datamultipolesbob3.csv
three-body (monodisperse)
bobbing
-
h/R
N


datamultipolesbt2.csv
two-body (monodisperse)
bobbing+tilting
-
h/R
N


datamultipolesbt3.csv
three-body (monodisperse)
bobbing+tilting
-
h/R
N


datamultipolesfixed2.csv
two-body (monodisperse)
fixed
-
h/R
N


datamultipolesfixed3.csv
three-body (monodisperse)
fixed
-
h/R
N




Δ123
DOI: 10.5281/zenodo.16750773
title: Polydispersity and Fluctuation-Induced Forces between Interfacial Colloids

description: **Version 2.0 (Correction Note):** This dataset is a corrected version of the original record. The previous version (v1.0) contained a significant numerical error in the calculation of the three-body interaction for mobile colloids. The data files in this new version have been fully corrected and should be used for any analysis. The previous version is preserved for the scientific record but should be considered obsolete.







Dataset Description








file name
description
scenario
h/R2
column1
column2


data2bh5.csv
two-body interaction
bobbing
5
R1/R2
Δ2


data2bth5.csv
two-body interaction
bobbing+tilting
5
R1/R2
Δ2


data2fixedh5.csv
two-body interaction
fixed
5
R1/R2
Δ2


datab1i1h1.csv
three-body interaction
bobbing
1
R1/R2
Δ123


datab1i1h10.csv
three-body interaction
bobbing
10
R1/R2
Δ123


datab1i1h5.csv
three-body interaction
bobbing
5
R1/R2
Δ123


databt1i1h1.csv
three-body interaction
bobbing+tilting
1
R1/R2
Δ123


databt1i1h10.csv
three-body interaction
bobbing+tilting
10
R1/R2
Δ123


databt1i1h5.csv
three-body interaction
bobbing+tilting
5
R1/R2
Δ123


dataf1i1h1.csv
three-body interaction
fixed
1
R1/R2
Δ123


dataf1i1h10.csv
three-body interaction
fixed
10
R1/R2
Δ123


dataf1i1h5.csv
three-body interaction
fixed
5
R1/R2
Δ123


datamultipolesbob2.csv
two-body (monodisperse)
bobbing
-
h/R
N


datamultipolesbob3.csv
three-body (monodisperse)
bobbing
-
h/R
N


datamultipolesbt2.csv
two-body (monodisperse)
bobbing+tilting
-
h/R
N


datamultipolesbt3.csv
three-body (monodisperse)
bobbing+tilting
-
h/R
N


datamultipolesfixed2.csv
two-body (monodisperse)
fixed
-
h/R
N


datamultipolesfixed3.csv
three-body (monodisperse)
fixed
-
h/R
N




Δ123
DOI: 10.7289/v5s180sx
title: Chlorofluorocarbons, helium, tritium, temperature, salinity and oxygen measurements collected from discrete samples and profile observations during the R/V Aegaeo M4WF cruise (EXPOCODE 36AE19981014) in the Mediterranean Sea from 1998-10-14 to 1998-10-19 (NCEI Accession 0173369)

description: This dataset includes discrete sample and profile data collected during the R/V Aegaeo M4WF cruise (EXPOCODE 36AE19981014) in the Mediterranean Sea from 1998-10-14 to 1998-10-19. These data include chlorofluorocarbons, helium, tritium, temperature, salinity and oxygen measurements.
DOI: 10.26023/dsts-5m2z-nc0t
title: START08: NCEP GFS Global Analysis - NetCDF format. Version 1.0

description: This dataset from the Stratosphere-Troposphere Analyses of Regional Transport (START08) consists of NCEP Global Forecast (GFS) model analysis files in NetCDF format. The files are compressed bz2files. (bunzip2 filename)
DOI: 10.7289/v58s4n8g
title: Chlorofluorocarbons, nutrients, dissolved oxygen, temperature, salinity and other measurements collected from discrete samples and profile observations during the R/V Meteor MT5/6 cruise (EXPOCODE 06MT19870818) in the Mediterranean Sea from 1987-08-18 to 1987-09-24 (NCEI Accession 0173619)

description: This dataset includes discrete sample and profile data collected during the R/V Meteor MET5/6 cruise (EXPOCODE 06MT19870818) in the Mediterranean Sea from 1987-08-18 to 1987-09-24. These data include temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons, helium, tritium and neon measurements.
DOI: 10.7289/v57h1gxq
title: Sea surface and atmospheric carbon dioxide (CO2) measurements in the Atlantic Ocean during the Ship of Opportunity (SOOP) UK to Caribbean lines onboard the MV Benguela Stream in 2017 (NCEI Accession 0174135)

description: This dataset includes surface underway, chemical, meteorological and physical data collected from Ship of Opportunity (SOOP) MV Benguela Stream in the North Atlantic Ocean from 2017-01-21 to 2017-10-19. These data include partial pressure of carbon dioxide (pCO2) - water, pCO2 - air, air-sea difference of pCO2, barometric pressure, dissolved oxygen, nutrients, sea surface salinity and temperature. The instruments used to collect these data include barometric pressure sensor and carbon dioxide gas analyzer. These data were collected by Dr. Ute Schuster of University of Exeter.
DOI: 10.25921/6k3e-3x27
title: Chlorofluorocarbons, nutrients, dissolved oxygen, temperature, salinity and other measurements collected from discrete samples and profile observations during the R/V Meteor MT31/1 cruise (EXPOCODE 06MT19941230) in the Mediterranean Sea from 1994-12-30 to 1995-03-22 (NCEI Accession 0174793)

description: This dataset includes discrete sample and profile data collected during the R/V Meteor MT31/1 cruise (EXPOCODE 06MT19941230) in the Mediterranean Sea from 1994-12-30 to 1995-03-22. These data include temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons, helium, tritium and neon measurements.
DOI: 10.25921/hn7s-ss77
title: Chlorofluorocarbons, nutrients, dissolved oxygen, temperature, salinity and other measurements collected from discrete samples and profile observations during the R/V Meteor MT44/4 cruise (EXPOCODE 06MT19990410) in the Mediterranean Sea from 1999-04-10 to 1999-05-16 (NCEI Accession 0174806)

description: This dataset includes discrete sample and profile data collected during the R/V Meteor MT44/4 cruise (EXPOCODE 06MT19990410) in the Mediterranean Sea from 1999-04-10 to 1999-05-16. These data include temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons, helium, tritium and neon measurements.
DOI: 10.25921/g4pn-7922
title: Chlorofluorocarbons, temperature, salinity and other measurements collected from discrete samples and profile observations during the R/V Urania cruise (EXPOCODE 48UR19970830) in the Mediterranean Sea from 1997-08-30 to 1997-09-08 (NCEI Accession 0175942)

description: This dataset includes discrete profile data collected during the R/V Urania cruise MAI2 (EXPOCODE 48UR19970830) in the Mediterranean Sea from 1997-08-30 to 1997-09-08. These data include temperature, salinity, chlorofluorocarbons, helium, tritium and neon measurements.
DOI: 10.25921/zft1-g981
title: Chlorofluorocarbons, temperature, salinity and other measurements collected from discrete samples and profile observations during the R/V Urania cruise (EXPOCODE 48UR19990211) in the Mediterranean Sea from 1999-02-11 to 1999-02-17 (NCEI Accession 0175943)

description: This dataset includes discrete profile data collected during the R/V Urania cruise MAI2 (EXPOCODE 48UR19990211) in the Mediterranean Sea from 1999-02-11 to 1999-02-17. These data include temperature, salinity, chlorofluorocarbons, helium, tritium and neon measurements.
DOI: 10.25921/350g-0y60
title: Dissolved inorganic carbon, total alkalinity, oxygen, temperature, salinity, nutrients and other parameters collected from profile and discrete sample observations from R/V Helmer Hansen cruise (EXPOCODE 58HJ20120807) in the Arctic Ocean from 2012-08-07 to 2012-08-17 (NCEI Accession 0176290)

description: This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, oxygen, nutrients and Delta O18 measured from R/V Helmer Hansen cruise (EXPOCODE 58HJ20120807) in the Arctic Ocean from 2012-08-07 to 2012-08-17.
DOI: 10.15468/dl.2daujx
title: Occurrence Download

description: A dataset containing 1122132 records in GBIF matching the query:
SELECT
 occurrenceid,
 organismid,
 scientificname,
 class,
 eventdate,
 decimallatitude,
 decimallongitude,
 datasetkey,
 publisher
FROM
 occurrence
WHERE
 GBIF_STRINGARRAYCONTAINS(occurrence.networkkey, 'ab013f3a-3c00-42cb-9fdb-cb5f4ba20a4b', FALSE)
 AND occurrence."year" = 2020
 AND occurrence.occurrencestatus = 'PRESENT'
 AND occurrence.basisofrecord = 'MACHINE_OBSERVATION'

 The dataset's 1122132 records were derived from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0043179-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/w90w-2032
title: Chlorofluorocarbons, oxygen, water temperature and salinity collected from profile and discrete sample observations from R/V Thalassa cruise SPOL (EXPOCODE 35TH20050604) in the North Atlantic Ocean from 2005-06-04 to 2005-07-12 (NCEI Accession 0176316)

description: This dataset includes discrete profile measurements of Chlorofluorocarbons, oxygen, water temperature and salinity collected from R/V Thalassa cruise SPOL (EXPOCODE 35TH20050604) in the North Arctic Ocean from 2005-06-04 to 2005-07-12.
DOI: 10.25921/fmr6-6z65
title: Chlorofluorocarbons, oxygen, water temperature and salinity collected from profile and discrete sample observations from R/V Maria S. Merian cruise MSM05_1 (EXPOCODE 06M220070414) in the North Atlantic Ocean from 2007-04-14 to 2007-05-03 (NCEI Accession 0176345)

description: This dataset includes discrete profile measurements of chlorofluorocarbons, oxygen, water temperature and salinity collected from R/V Maria S. Merian cruise MSM05_1 (EXPOCODE 06M220070414) in the North Atlantic Ocean from 2007-04-14 to 2007-05-03.
DOI: 10.25921/n94z-zj83
title: Chlorofluorocarbons (CFCs), water temperature, salinity and sulfur hexafluoride (SF6) collected from profile and discrete sample observations from R/V Maria S. Merian cruise MSM09_1 (EXPOCODE 06M220080723) in the North Atlantic Ocean from 2008-07-23 to 2008-08-18 (NCEI Accession 0176346)

description: This dataset includes discrete profile measurements of chlorofluorocarbons (CFCs), water temperature, salinity and sulfur hexafluoride (SF6) collected from R/V Maria S. Merian cruise MSM09_1 (EXPOCODE 06M220080723) in the North Atlantic Ocean from 2008-07-23 to 2008-08-18.
DOI: 10.5281/zenodo.17257430
title: Monumental Cemetery Black Crust Analysis - Dataset
DOI: 10.5281/zenodo.17257429
title: Monumental Cemetery Black Crust Analysis - Dataset
DOI: 10.25921/c1sn-9631
title: A comprehensive global oceanic dataset of discrete measurements of helium isotope and tritium during the hydrographic cruises on various ships from 1952-10-21 to 2016-01-22 (NCEI Accession 0176626)

description: This dataset consists of global oceanic database of tritium and helium isotope measurements made by numerous researchers and laboratories over a period exceeding 60 years: from 1952-10-21 to 2016-01-22 in the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, Arctic Ocean, Mediterranean Sea, Baltic Sea, Black Sea. Tritium and helium isotope data provide key information on ocean circulation, ventilation, and mixing, as well as the rates of biogeochemical processes, and deep-ocean hydrothermal processes. The dataset includes approximately 60,000 valid tritium measurements, 63,000 valid helium isotope determinations, 57,000 dissolved helium concentrations, and 34,000 dissolved neon concentrations. Some quality control has been applied in that questionable data have been flagged and clearly compromised data excluded entirely. Appropriate metadata has been included: geographic location, date, and sample depth. When available, water temperature, salinity, and dissolved oxygen were included. Data quality flags and data originator information (including methodology) are also included.
DOI: 10.6084/m9.figshare.29963561
title: Source data for supporting information in <i>Acinetobacter</i> phages use distinct strategies to breach the capsule barrier

description: Source data for supporting information in <i>Acinetobacter</i> phages use distinct strategies to breach the capsule barrier.The annotated sequence for the <i>Acinetobacter baumannii</i> strain, G7, as well as the annotated sequences for the three main phages described in the paper (StAb1, StAb2, and StAb3) are also included.
DOI: 10.15468/dl.mhc7dr
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Hieracium contaminatum",
 "Country is Denmark",
 "HasCoordinate is true"
 ]
}

 The dataset includes 6 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0043188-250920141307145/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.29963561.v1
title: Source data for supporting information in <i>Acinetobacter</i> phages use distinct strategies to breach the capsule barrier

description: Source data for supporting information in <i>Acinetobacter</i> phages use distinct strategies to breach the capsule barrier.
DOI: 10.6084/m9.figshare.29963561.v2
title: Source data for supporting information in <i>Acinetobacter</i> phages use distinct strategies to breach the capsule barrier

description: Source data for supporting information in <i>Acinetobacter</i> phages use distinct strategies to breach the capsule barrier.The annotated sequence for the <i>Acinetobacter baumannii</i> strain, G7, as well as the annotated sequences for the three main phages described in the paper (StAb1, StAb2, and StAb3) are also included.
DOI: 10.25921/8eq5-q834
title: NCCOS Assessment: Modeling At-Sea Density of Marine Birds to Support Atlantic Marine Renewable Energy Planning from 1978-2016 (NCEI Accession 0176682)

description: This dataset provides seasonal spatial rasters of median predicted long-term (1978-2016) relative density of 47 marine bird species throughout the US Atlantic Outer Continental Shelf (OCS) and adjacent waters at a 2-km spatial resolution. Three indications of the uncertainty associated with the model predictions are also provided: 1) seasonal spatial layers indicating areas with no survey effort, 2) seasonal spatial rasters of the precision of predicted relative density of each species characterized as its coefficient of variation (CV), and 3) seasonal spatial rasters of the precision of predicted relative density of each species characterized as its 90% confidence interval. Predicted relative density should always be considered in conjunction with these three indications of uncertainty. Suggested symbology class breaks and labels for mapping predicted relative density and its CV are also included. Finally, this dataset also includes spatial rasters of environmental predictor variables that were used in the predictive modeling.
DOI: 10.25921/0azg-2457
title: Surface underway measurements of partial pressure of CO2 (pCO2) and other parameters aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20100701) from 2010-08-06 to 2010-10-15 (NCEI Accession 0177819)

description: This dataset includes surface underway, chemical, meteorological and physical data collected aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20100701) from 2010-08-06 to 2010-10-15. These data include partial pressure of carbon dioxide (pCO2), barometric pressure, sea surface salinity and sea surface temperature. The instruments used to collect these data include CO2 gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.
DOI: 10.15468/dl.eqgfc7
title: Occurrence Download

description: A dataset containing 22773 records in GBIF matching the query:

SELECT
level0gid,
 GBIF_ISEA3HCode(
 9, 
 decimalLatitude,
 decimalLongitude,
 COALESCE(coordinateUncertaintyInMeters, 1000)
 ) AS geogrid_id,
 speciesKey,
 COUNT(*) AS n_records
FROM occurrence
WHERE level0gid='BWA'
AND coordinateUncertaintyInMeters &lt;= 2000
AND hasGeospatialIssues = FALSE
AND hasCoordinate = TRUE
AND occurrenceStatus = 'PRESENT'
GROUP BY level0gid, geogrid_id, speciesKey;


 The dataset's 22773 records were derived from 54 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0043181-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/xc5j-ew56
title: Surface underway measurements of partial pressure of CO2 (pCO2) and other parameters aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20110718) from 2011-07-18 to 2011-10-16 (NCEI Accession 0177835)

description: This dataset includes surface underway, chemical, meteorological and physical data collected aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20110718) from 2011-07-18 to 2011-10-16. These data include partial pressure of carbon dioxide (pCO2), barometric pressure, sea surface salinity and sea surface temperature. The instruments used to collect these data include CO2 gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.
DOI: 10.25921/6y32-wg91
title: Surface underway measurements of partial pressure of CO2 (pCO2) and other parameters aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20130726) from 2013-07-26 to 2013-09-13 (NCEI Accession 0177851)

description: This dataset includes surface underway, chemical, meteorological and physical data collected aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20130726) from 2013-07-26 to 2013-09-13. These data include partial pressure of carbon dioxide (pCO2), barometric pressure, sea surface salinity and sea surface temperature. The instruments used to collect these data include CO2 gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.
DOI: 10.25921/4pj7-mj15
title: Surface underway measurements of partial pressure of CO2 (pCO2) and other parameters aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20140707) from 2014-07-07 to 2014-08-21 (NCEI Accession 0177853)

description: This dataset includes surface underway, chemical, meteorological and physical data collected aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20140707) from 2014-07-07 to 2014-08-21. These data include partial pressure of carbon dioxide (pCO2), barometric pressure, sea surface salinity and sea surface temperature. The instruments used to collect these data include CO2 gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.
DOI: 10.25921/j38g-sp85
title: Surface underway measurements of partial pressure of CO2 (pCO2) and other parameters aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20150417) from 2015-09-08 to 2015-10-14 (NCEI Accession 0177874)

description: This dataset includes surface underway, chemical, meteorological and physical data collected aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20150417) from 2015-09-08 to 2015-10-14. These data include partial pressure of carbon dioxide (pCO2), barometric pressure, sea surface salinity and sea surface temperature. The instruments used to collect these data include CO2 gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.
DOI: 10.25921/nqj8-qj37
title: Surface underway measurements of partial pressure of CO2 (pCO2) and other parameters aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20160802) from 2016-08-02 to 2016-09-26 (NCEI Accession 0177875)

description: This dataset includes surface underway, chemical, meteorological and physical data collected aboard the CCGS Amundsen during the Canadian Arctic Archipelago cruise (EXPOCODE 18DL20160802) from 2016-08-02 to 2016-09-26. These data include partial pressure of carbon dioxide (pCO2), barometric pressure, sea surface salinity and sea surface temperature. The instruments used to collect these data include CO2 gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.