<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">
<title>ACT: Alliance for Coastal Technologies</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/617" rel="alternate"/>
<subtitle/>
<id>https://repository.oceanbestpractices.org/handle/11329/617</id>
<updated>2026-06-13T11:47:36Z</updated>
<dc:date>2026-06-13T11:47:36Z</dc:date>
<entry>
<title>Performance Verification Statement for the YSI Inc. Rapid Pulse Dissolved Oxygen Sensor.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/821" rel="alternate"/>
<author>
<name/>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/821</id>
<updated>2019-01-30T22:02:30Z</updated>
<published>2004-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the YSI Inc. Rapid Pulse Dissolved Oxygen Sensor.
Instrument performance verification is necessary so that effective existing technologies can be&#13;
recognized and so that promising new technologies can become available to support coastal science,&#13;
resource management, and ocean observing systems. To this end, the NOAA-funded Alliance for Coastal&#13;
Technologies (ACT) serves as an unbiased, third party testbed for evaluating coastal sensors and sensor&#13;
platforms for use in coastal environments. ACT also serves as a comprehensive data and information&#13;
clearinghouse on coastal technologies and a forum for capacity building through workshops on specific&#13;
technology topics (for more information visit www.act-us.info).&#13;
This document summarizes the procedures used and results of an ACT Evaluation to verify&#13;
manufacturer claims regarding the performance of the YSI Rapid Pulse Dissolved Oxygen Sensor&#13;
incorporated as part of the 6600 EDS. Detailed protocols, including QA/QC methods, are described in&#13;
the Protocols for the ACT Verification of In Situ Dissolved Oxygen Sensors (ACT TV04-01), which can&#13;
be downloaded from the ACT website (www.act-us.info/tech_evalvations.php). Appendix 1. is an&#13;
interpretation of the Performance Verification results from the manufacturer's point of view.
</summary>
<dc:date>2004-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the In-Situ Inc. Dissolved Oxygen RDO Sensor.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/820" rel="alternate"/>
<author>
<name/>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/820</id>
<updated>2019-01-30T22:03:13Z</updated>
<published>2004-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the In-Situ Inc. Dissolved Oxygen RDO Sensor.
Instrument performance verification is necessary so that effective existing technologies can be&#13;
recognized and so that promising new technologies can become available to support coastal science,&#13;
resource management, and ocean observing systems. To this end, the NOAA-funded Alliance for Coastal&#13;
Technologies (ACT) serves as an unbiased, third party testbed for evaluating coastal sensors and sensor&#13;
platforms for use in coastal environments. ACT also serves as a comprehensive data and information&#13;
clearinghouse on coastal technologies and a forum for capacity building through workshops on specific&#13;
technology topics (for more information visit www.act-us.info).&#13;
This document summarizes the procedures used and results of an ACT Evaluation to verify&#13;
manufacturer claims regarding the performance of the In-Situ RDO dissolved oxygen optode. Detailed&#13;
protocols, including QA/QC methods, are described in the Protocols for the ACT Verification of In Situ&#13;
Dissolved Oxygen Sensors (ACT TV04-01), which can be downloaded from the ACT website (www.actus.info/tech_evalvations.php). Appendix 1. is an interpretation of the Performance Verification results&#13;
from the manufacturer's point of view.
</summary>
<dc:date>2004-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the Greenspan Technology Dissolved Oxygen Sensor DO300/DO1200.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/819" rel="alternate"/>
<author>
<name/>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/819</id>
<updated>2019-01-30T22:03:43Z</updated>
<published>2004-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the Greenspan Technology Dissolved Oxygen Sensor DO300/DO1200.
Instrument performance verification is necessary so that effective existing technologies can be&#13;
recognized and so that promising new technologies can become available to support coastal science,&#13;
resource management, and ocean observing systems. To this end, the NOAA-funded Alliance for Coastal&#13;
Technologies (ACT) serves as an unbiased, third party testbed for evaluating coastal sensors and sensor&#13;
platforms for use in coastal environments. ACT also serves as a comprehensive data and information&#13;
clearinghouse on coastal technologies and a forum for capacity building through workshops on specific&#13;
technology topics (for more information visit www.act-us.info).&#13;
This document summarizes the procedures used and results of an ACT Evaluation to verify&#13;
manufacturer claims regarding the performance of the Greenspan Dissolved Oxygen Sensor. Detailed&#13;
protocols, including QA/QC methods, are described in the Protocols for the ACT Verification of In Situ&#13;
Dissolved Oxygen Sensors (ACT TV04-01), which can be downloaded from the ACT website (www.actus.info/tech_evalvations.php). Appendix 1. is an interpretation of the Performance Verification results&#13;
from the manufacturer's point of view.
</summary>
<dc:date>2004-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the Aanderaa Instruments Inc. Dissolved Oxygen Optode 3830/3930/3835.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/818" rel="alternate"/>
<author>
<name/>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/818</id>
<updated>2019-01-30T22:04:18Z</updated>
<published>2004-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the Aanderaa Instruments Inc. Dissolved Oxygen Optode 3830/3930/3835.
Instrument performance verification is necessary so that effective existing technologies can be&#13;
recognized and so that promising new technologies can become available to support coastal science,&#13;
resource management, and ocean observing systems. To this end, the NOAA-funded Alliance for Coastal&#13;
Technologies (ACT) serves as an unbiased, third party testbed for evaluating coastal sensors and sensor&#13;
platforms for use in coastal environments. ACT also serves as a comprehensive data and information&#13;
clearinghouse on coastal technologies and a forum for capacity building through workshops on specific&#13;
technology topics (for more information visit www.act-us.info).&#13;
This document summarizes the procedures used and results of an ACT Evaluation to verify&#13;
manufacturer claims regarding the performance of the Aanderaa Dissolved Oxygen (DO) Optode&#13;
3830/3930/3835. Detailed protocols, including QA/QC methods, are described in the Protocols for the&#13;
ACT Verification of In Situ Dissolved Oxygen Sensors (ACT TV04-01), which can be downloaded from&#13;
the ACT website (www.act-us.info/tech_evalvations.php). Appendix 1. is an interpretation of the&#13;
Performance Verification results from the manufacturer's point of view.
</summary>
<dc:date>2004-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the YSI Inc. Model 6025 Chlorophyll Probe.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/817" rel="alternate"/>
<author>
<name>Carroll, M.</name>
</author>
<author>
<name>Chigounis, D.</name>
</author>
<author>
<name>Gilbert, S.</name>
</author>
<author>
<name>Gundersen, K.</name>
</author>
<author>
<name>Hayashi, K.</name>
</author>
<author>
<name>Janzen, C.</name>
</author>
<author>
<name>Johengen, T.</name>
</author>
<author>
<name>Koles, T.</name>
</author>
<author>
<name>Laurier, F.</name>
</author>
<author>
<name>McKissack, T.</name>
</author>
<author>
<name>Meadows, L.</name>
</author>
<author>
<name>Metcalfe, C.</name>
</author>
<author>
<name>Robertson, C.</name>
</author>
<author>
<name>Schar, D.</name>
</author>
<author>
<name>Seiter, J.</name>
</author>
<author>
<name>Smith, G.J.</name>
</author>
<author>
<name>Tamburri, M.</name>
</author>
<author>
<name>Wells, D.</name>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/817</id>
<updated>2019-08-29T10:09:38Z</updated>
<published>2005-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the YSI Inc. Model 6025 Chlorophyll Probe.
Carroll, M.; Chigounis, D.; Gilbert, S.; Gundersen, K.; Hayashi, K.; Janzen, C.; Johengen, T.; Koles, T.; Laurier, F.; McKissack, T.; Meadows, L.; Metcalfe, C.; Robertson, C.; Schar, D.; Seiter, J.; Smith, G.J.; Tamburri, M.; Wells, D.
Instrument performance verification is necessary so that effective existing technologies can be recognized&#13;
and so that promising new technologies can become available to support coastal science, resource management, and&#13;
ocean observing systems. The Alliance for Coastal Technologies (ACT) has therefore completed an evaluation of in&#13;
situ fluorometers designed for measuring chlorophyll. Chlorophyll measurements are widely used by resource&#13;
managers and researchers to estimate phytoplankton abundance and distribution. Chlorophyll is also the most&#13;
important light-capturing molecule for photosynthesis and is an important variable in models of primary production.&#13;
While there are various techniques available for chlorophyll determinations, in situ fluorescence is widely accepted&#13;
for its simplicity, sensitivity, versatility, and economical advantages.&#13;
As described below in more detail, field tests that compare manufacturer’s chlorophyll values to those&#13;
determined by extractive HPLC analysis were designed only to examine an instrument’s ability to track changes in&#13;
chlorophyll concentrations through time or depth and NOT to determine how well the instrument’s values matched&#13;
those from extractive analysis. The use of fluorometers to determine chlorophyll levels in nature requires local&#13;
calibration to take into account species composition, physiology and the effect of ambient irradiance, particularly&#13;
photoquenching.&#13;
In this Verification Statement, we present the performance results of the YSI Model 6025 Chlorophyll&#13;
Probe evaluated in the laboratory and under diverse field conditions in both moored and profiling tests. A total of&#13;
nine different field sites or conditions were used for testing, including tropical coral reef, high turbidity estuary,&#13;
open-ocean, and freshwater lake environments. Because of the complexity of the tests conducted and the number of&#13;
variables examined, a concise summary is not possible. We encourage readers to review the entire document (and&#13;
supporting material found at www.ysi.com) for a comprehensive understanding of instrument performance.&#13;
However, specific subsection of parameters tested for and environments tested in can be more quickly identified&#13;
using the Table of Contents below.
</summary>
<dc:date>2005-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the WET Labs ECO FLNTUSB fluorometer.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/816" rel="alternate"/>
<author>
<name>Carroll, M.</name>
</author>
<author>
<name>Chigounis, D.</name>
</author>
<author>
<name>Gilbert, S.</name>
</author>
<author>
<name>Gundersen, K.</name>
</author>
<author>
<name>Hayashi, K.</name>
</author>
<author>
<name>Janzen, C.</name>
</author>
<author>
<name>Johengen, T.</name>
</author>
<author>
<name>Koles, T.</name>
</author>
<author>
<name>Laurier, F.</name>
</author>
<author>
<name>McKissack, T.</name>
</author>
<author>
<name>Meadows, L.</name>
</author>
<author>
<name>Metcalfe, C.</name>
</author>
<author>
<name>Robertson, C.</name>
</author>
<author>
<name>Schar, D.</name>
</author>
<author>
<name>Seiter, J.</name>
</author>
<author>
<name>Smith, G.J.</name>
</author>
<author>
<name>Tamburri, M.</name>
</author>
<author>
<name>Wells, D.</name>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/816</id>
<updated>2019-08-29T10:09:36Z</updated>
<published>2005-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the WET Labs ECO FLNTUSB fluorometer.
Carroll, M.; Chigounis, D.; Gilbert, S.; Gundersen, K.; Hayashi, K.; Janzen, C.; Johengen, T.; Koles, T.; Laurier, F.; McKissack, T.; Meadows, L.; Metcalfe, C.; Robertson, C.; Schar, D.; Seiter, J.; Smith, G.J.; Tamburri, M.; Wells, D.
Instrument performance verification is necessary so that effective existing technologies can be recognized&#13;
and so that promising new technologies can become available to support coastal science, resource management, and&#13;
ocean observing systems. The Alliance for Coastal Technologies (ACT) has therefore completed an evaluation of in&#13;
situ fluorometers designed for measuring chlorophyll. Chlorophyll measurements are widely used by resource&#13;
managers and researchers to estimate phytoplankton abundance and distribution. Chlorophyll is also the most&#13;
important light-capturing molecule for photosynthesis and is an important variable in models of primary production.&#13;
While there are various techniques available for chlorophyll determinations, in situ fluorescence is widely accepted&#13;
for its simplicity, sensitivity, versatility, and economical advantages.&#13;
As described below in more detail, field tests that compare manufacturer’s chlorophyll values to those&#13;
determined by extractive HPLC analysis were designed only to examine an instrument’s ability to track changes in&#13;
chlorophyll concentrations through time or depth and NOT to determine how well the instrument’s values matched&#13;
those from extractive analysis. The use of fluorometers to determine chlorophyll levels in nature requires local&#13;
calibration to take into account species composition, physiology and the effect of ambient irradiance, particularly&#13;
photoquenching.&#13;
In this Verification Statement, we present the performance results of the WET Labs ECO FLNTUSB&#13;
fluorometer evaluated in the laboratory and under diverse field conditions to in both moored and profiling tests. A&#13;
total of nine different field sites or conditions were used for testing, including tropical coral reef, high turbidity&#13;
estuary, open-ocean, and freshwater lake environments. Because of the complexity of the tests conducted and the&#13;
number of variables examined, a concise summary is not possible. We encourage readers to review the entire&#13;
document (and supporting material found at www. wetlabs.com) for a comprehensive understanding of instrument&#13;
performance. However, specific subsection of parameters tested for and environments tested in can be more quickly&#13;
identified using the Table of Contents below.
</summary>
<dc:date>2005-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the TURNER Designs SCUFA fluorometer.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/815" rel="alternate"/>
<author>
<name>Carroll, M.</name>
</author>
<author>
<name>Chigounis, D.</name>
</author>
<author>
<name>Gilbert, S.</name>
</author>
<author>
<name>Gundersen, K.</name>
</author>
<author>
<name>Hayashi, K.</name>
</author>
<author>
<name>Janzen, C.</name>
</author>
<author>
<name>Johengen, T.</name>
</author>
<author>
<name>Koles, T.</name>
</author>
<author>
<name>Laurier, F.</name>
</author>
<author>
<name>McKissack, T.</name>
</author>
<author>
<name>Meadows, L.</name>
</author>
<author>
<name>Metcalfe, C.</name>
</author>
<author>
<name>Robertson, C.</name>
</author>
<author>
<name>Schar, D.</name>
</author>
<author>
<name>Seiter, J.</name>
</author>
<author>
<name>Smith, G.J.</name>
</author>
<author>
<name>Tamburri, M.</name>
</author>
<author>
<name>Wells, D.</name>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/815</id>
<updated>2019-08-29T10:09:34Z</updated>
<published>2005-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the TURNER Designs SCUFA fluorometer.
Carroll, M.; Chigounis, D.; Gilbert, S.; Gundersen, K.; Hayashi, K.; Janzen, C.; Johengen, T.; Koles, T.; Laurier, F.; McKissack, T.; Meadows, L.; Metcalfe, C.; Robertson, C.; Schar, D.; Seiter, J.; Smith, G.J.; Tamburri, M.; Wells, D.
Instrument performance verification is necessary so that effective existing technologies can be recognized&#13;
and so that promising new technologies can become available to support coastal science, resource management, and&#13;
ocean observing systems. The Alliance for Coastal Technologies (ACT) has therefore completed an evaluation of in&#13;
situ fluorometers designed for measuring chlorophyll. Chlorophyll measurements are widely used by resource&#13;
managers and researchers to estimate phytoplankton abundance and distribution. Chlorophyll is also the most&#13;
important light-capturing molecule for photosynthesis and is an important variable in models of primary production.&#13;
While there are various techniques available for chlorophyll determinations, in situ fluorescence is widely accepted&#13;
for its simplicity, sensitivity, versatility, and economical advantages.&#13;
As described below in more detail, field tests that compare manufacturer’s chlorophyll values to those&#13;
determined by extractive HPLC analysis were designed only to examine an instrument’s ability to track changes in&#13;
chlorophyll concentrations through time or depth and NOT to determine how well the instrument’s values matched&#13;
those from extractive analysis. The use of fluorometers to determine chlorophyll levels in nature requires local&#13;
calibration to take into account species composition, physiology and the effect of ambient irradiance, particularly&#13;
photoquenching.&#13;
In this Verification Statement, we present the performance results of the Turner Designs SCUFA&#13;
fluorometer evaluated in the laboratory and under diverse field conditions to in both moored and profiling tests. A&#13;
total of nine different field sites or conditions were used for testing, including tropical coral reef, high turbidity&#13;
estuary, open-ocean, and freshwater lake environments. Because of the complexity of the tests conducted and the&#13;
number of variables examined, a concise summary is not possible. We encourage readers to review the entire&#13;
document (and supporting material found at www.turnerdesigns.com) for a comprehensive understanding of&#13;
instrument performance. However, specific subsection of parameters tested for and environments tested in can be&#13;
more quickly identified using the Table of Contents below.
</summary>
<dc:date>2005-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the TURNER Designs CYCLOPS-7 fluorometer.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/814" rel="alternate"/>
<author>
<name>Carroll, M.</name>
</author>
<author>
<name>Chigounis, D.</name>
</author>
<author>
<name>Gilbert, S.</name>
</author>
<author>
<name>Gundersen, K.</name>
</author>
<author>
<name>Hayashi, K.</name>
</author>
<author>
<name>Janzen, C.</name>
</author>
<author>
<name>Johengen, T.</name>
</author>
<author>
<name>Koles, T.</name>
</author>
<author>
<name>Laurier, F.</name>
</author>
<author>
<name>McKissack, T.</name>
</author>
<author>
<name>Meadows, L.</name>
</author>
<author>
<name>Metcalfe, C.</name>
</author>
<author>
<name>Robertson, C.</name>
</author>
<author>
<name>Schar, D.</name>
</author>
<author>
<name>Seiter, J.</name>
</author>
<author>
<name>Smith, G.J.</name>
</author>
<author>
<name>Tamburri, M.</name>
</author>
<author>
<name>Wells, D.</name>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/814</id>
<updated>2019-08-29T10:09:32Z</updated>
<published>2005-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the TURNER Designs CYCLOPS-7 fluorometer.
Carroll, M.; Chigounis, D.; Gilbert, S.; Gundersen, K.; Hayashi, K.; Janzen, C.; Johengen, T.; Koles, T.; Laurier, F.; McKissack, T.; Meadows, L.; Metcalfe, C.; Robertson, C.; Schar, D.; Seiter, J.; Smith, G.J.; Tamburri, M.; Wells, D.
Instrument performance verification is necessary so that effective existing technologies can be recognized&#13;
and so that promising new technologies can become available to support coastal science, resource management, and&#13;
ocean observing systems. The Alliance for Coastal Technologies (ACT) has therefore completed an evaluation of in&#13;
situ fluorometers designed for measuring chlorophyll. Chlorophyll measurements are widely used by resource&#13;
managers and researchers to estimate phytoplankton abundance and distribution. Chlorophyll is also the most&#13;
important light-capturing molecule for photosynthesis and is an important variable in models of primary production.&#13;
While there are various techniques available for chlorophyll determinations, in situ fluorescence is widely accepted&#13;
for its simplicity, sensitivity, versatility, and economical advantages.&#13;
As described below in more detail, field tests that compare manufacturer’s chlorophyll values to those&#13;
determined by extractive HPLC analysis were designed only to examine an instrument’s ability to track changes in&#13;
chlorophyll concentrations through time or depth and NOT to determine how well the instrument’s values matched&#13;
those from extractive analysis. The use of fluorometers to determine chlorophyll levels in nature requires local&#13;
calibration to take into account species composition, physiology and the effect of ambient irradiance, particularly&#13;
photoquenching.&#13;
In this Verification Statement, we present the performance results of the Turner Designs CYCLOPS-7&#13;
fluorometer evaluated in the laboratory and under diverse field conditions in both moored and profiling tests. A total&#13;
of nine different field sites or conditions were used for testing, including tropical coral reef, high turbidity estuary,&#13;
open-ocean, and freshwater lake environments. Because of the complexity of the tests conducted and the number of&#13;
variables examined, a concise summary is not possible. We encourage readers to review the entire document (and&#13;
supporting material found at www.turnerdesigns.com) for a comprehensive understanding of instrument&#13;
performance. However, specific subsection of parameters tested for and environments tested in can be more quickly&#13;
identified using the Table of Contents below.
</summary>
<dc:date>2005-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the Hach Environmental Hydrolab DS5X Sonde.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/813" rel="alternate"/>
<author>
<name>Carroll, M.</name>
</author>
<author>
<name>Chigounis, D.</name>
</author>
<author>
<name>Gilbert, S.</name>
</author>
<author>
<name>Gundersen, K.</name>
</author>
<author>
<name>Hayashi, K.</name>
</author>
<author>
<name>Janzen, C.</name>
</author>
<author>
<name>Johengen, T.</name>
</author>
<author>
<name>Koles, T.</name>
</author>
<author>
<name>Laurier, F.</name>
</author>
<author>
<name>McKissack, T.</name>
</author>
<author>
<name>Meadows, L.</name>
</author>
<author>
<name>Metcalfe, C.</name>
</author>
<author>
<name>Robertson, C.</name>
</author>
<author>
<name>Schar, D.</name>
</author>
<author>
<name>Seiter, J.</name>
</author>
<author>
<name>Smith, G.J.</name>
</author>
<author>
<name>Tamburri, M.</name>
</author>
<author>
<name>Wells, D.</name>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/813</id>
<updated>2019-08-29T10:09:30Z</updated>
<published>2005-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the Hach Environmental Hydrolab DS5X Sonde.
Carroll, M.; Chigounis, D.; Gilbert, S.; Gundersen, K.; Hayashi, K.; Janzen, C.; Johengen, T.; Koles, T.; Laurier, F.; McKissack, T.; Meadows, L.; Metcalfe, C.; Robertson, C.; Schar, D.; Seiter, J.; Smith, G.J.; Tamburri, M.; Wells, D.
Instrument performance verification is necessary so that effective existing technologies can be recognized&#13;
and so that promising new technologies can become available to support coastal science, resource management, and&#13;
ocean observing systems. The Alliance for Coastal Technologies (ACT) has therefore completed an evaluation of in&#13;
situ fluorometers designed for measuring chlorophyll. Chlorophyll measurements are widely used by resource&#13;
managers and researchers to estimate phytoplankton abundance and distribution. Chlorophyll is also the most&#13;
important light-capturing molecule for photosynthesis and is an important variable in models of primary production.&#13;
While there are various techniques available for chlorophyll determinations, in situ fluorescence is widely accepted&#13;
for its simplicity, sensitivity, versatility, and economical advantages.&#13;
As described below in more detail, field tests that compare manufacturer’s chlorophyll values to those&#13;
determined by extractive HPLC analysis were designed only to examine an instrument’s ability to track changes in&#13;
chlorophyll concentrations through time or depth and NOT to determine how well the instrument’s values matched&#13;
those from extractive analysis. The use of fluorometers to determine chlorophyll levels in nature requires local&#13;
calibration to take into account species composition, physiology and the effect of ambient irradiance, particularly&#13;
photoquenching.&#13;
In this Verification Statement, we present the performance results of the Hach Environmental Hydrolab&#13;
DS5X Sonde evaluated in the laboratory and under diverse field conditions in both moored and profiling tests. A&#13;
total of nine different field sites or conditions were used for testing, including tropical coral reef, high turbidity&#13;
estuary, open-ocean, and freshwater lake environments. Because of the complexity of the tests conducted and the&#13;
number of variables examined, a concise summary is not possible. We encourage readers to review the entire&#13;
document (and supporting material found at www.hachenvironmental.com) for a comprehensive understanding of&#13;
instrument performance. However, specific subsection of parameters tested for and environments tested in can be&#13;
more quickly identified using the Table of Contents below.
</summary>
<dc:date>2005-01-01T00:00:00Z</dc:date>
</entry>
<entry>
<title>Performance Verification Statement for the Chelsea MINItracka IIC fluorometer.</title>
<link href="https://repository.oceanbestpractices.org/handle/11329/812" rel="alternate"/>
<author>
<name>Carroll, M.</name>
</author>
<author>
<name>Chigounis, D.</name>
</author>
<author>
<name>Gilbert, S.</name>
</author>
<author>
<name>Gundersen, K.</name>
</author>
<author>
<name>Hayashi, K.</name>
</author>
<author>
<name>Janzen, C.</name>
</author>
<author>
<name>Johengen, T.</name>
</author>
<author>
<name>Koles, T.</name>
</author>
<author>
<name>Laurier, F.</name>
</author>
<author>
<name>McKissack, T.</name>
</author>
<author>
<name>Meadows, L.</name>
</author>
<author>
<name>Metcalfe, C.</name>
</author>
<author>
<name>Robertson, C.</name>
</author>
<author>
<name>Schar, D.</name>
</author>
<author>
<name>Seiter, J.</name>
</author>
<author>
<name>Smith, G.J.</name>
</author>
<author>
<name>Tamburri, M.</name>
</author>
<author>
<name>Wells, D.</name>
</author>
<id>https://repository.oceanbestpractices.org/handle/11329/812</id>
<updated>2019-08-29T10:09:28Z</updated>
<published>2005-01-01T00:00:00Z</published>
<summary type="text">Performance Verification Statement for the Chelsea MINItracka IIC fluorometer.
Carroll, M.; Chigounis, D.; Gilbert, S.; Gundersen, K.; Hayashi, K.; Janzen, C.; Johengen, T.; Koles, T.; Laurier, F.; McKissack, T.; Meadows, L.; Metcalfe, C.; Robertson, C.; Schar, D.; Seiter, J.; Smith, G.J.; Tamburri, M.; Wells, D.
Instrument performance verification is necessary so that effective existing technologies can be recognized&#13;
and so that promising new technologies can become available to support coastal science, resource management, and&#13;
ocean observing systems. The Alliance for Coastal Technologies (ACT) has therefore completed an evaluation of in&#13;
situ fluorometers designed for measuring chlorophyll. Chlorophyll measurements are widely used by resource&#13;
managers and researchers to estimate phytoplankton abundance and distribution. Chlorophyll is also the most&#13;
important light-capturing molecule for photosynthesis and is an important variable in models of primary production.&#13;
While there are various techniques available for chlorophyll determinations, in situ fluorescence is widely accepted&#13;
for its simplicity, sensitivity, versatility, and economical advantages.&#13;
As described below in more detail, field tests that compare manufacturer’s chlorophyll values to those&#13;
determined by extractive HPLC analysis were designed only to examine an instrument’s ability to track changes in&#13;
chlorophyll concentrations through time or depth and NOT to determine how well the instrument’s values matched&#13;
those from extractive analysis. The use of fluorometers to determine chlorophyll levels in nature requires local&#13;
calibration to take into account species composition, physiology and the effect of ambient irradiance, particularly&#13;
photoquenching.&#13;
In this Verification Statement, we present the performance results of the Chelsea Technologies Group&#13;
MINItracka IIC fluorometer evaluated in the laboratory and under diverse field conditions in both moored and&#13;
profiling tests. A total of nine different field sites or conditions were used for testing, including tropical coral reef,&#13;
high turbidity estuary, open-ocean, and freshwater lake environments. Because of the complexity of the tests&#13;
conducted and the number of variables examined, a concise summary is not possible. We encourage readers to&#13;
review the entire document (and supporting material found at www.chelsea.co.uk) for a comprehensive&#13;
understanding of instrument performance. However, specific subsection of parameters tested for and environments&#13;
tested in can be more quickly identified using the Table of Contents below.
</summary>
<dc:date>2005-01-01T00:00:00Z</dc:date>
</entry>
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