PROFILING FLOATS ARVOR - PROVOR
OCOT0102ARVORI

PROFILING FLOATS ARVOR - PROVOR

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OCOT0102ARVORI

PROFILING FLOATS ARVOR - PROVOR

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Standard profiling floats

NKE Instrumentation is involved in the international ARGO program in order to supply profiling floats measuring temperature and salinity. Therefore one of the company’s key activities is the development of these floats in order to support the scientific community, notably in partnership with IFREMER. The so-called “standard” profiling floats are the ARVOR and PROVOR ranges, which communicate by ARGOS or Iridium transmission the CTD data collected autonomously during acquisition periods. These profiling floats can also be fitted with other sensors including a dissolved oxygen sensor.

ARVOR L: TS, 2000m

Description - ARVOR L provides salinity, temperature and pressure profiles up to 2000 meters depth. Data and positioning are achieved ARGOS satellites.

Mission with two depth values alternated and grounding avoidance function are settable by user before mission.

With self-ballast and very light design, ARVOR L can be deployed by one person.

It capitalizes on both the know-how of Ifremer in floats activities and designing qualified subassemblies and of nke on industrial product development.

ARVOR I: TS, 2000m, Iridium

Description - ARVOR I provides salinity, temperature and pressure profiles with position information thanks to an integrated GPS receiver. Data are transmitted via Iridium satellites network.

Bluetooth technology enables easy and fast configuration before mission. Iridium downlink enables parameters modification remotely as soon as the ARVOR I surfaces.

With self-ballast and very light design, ARVOR I can be deployed by one person.

It capitalises on both the know-how of Ifremer in floats activities and designing qualified subassemblies; and of NKE on industrial product development.

ARVOR DO: TS, DO, 2000m, Argos2

Description - ARVOR DO provides salinity, temperature, pressure and dissolved oxygen profiles up to 2000 meters depth, using proven ARGO sensors. Data and positioning are achieved by ARGOS satellites.

Mission with two depth values alternated and grounding avoidance function are settable by user before mission. With self-ballast and very light design, ARVOR can be deployed by one person.

Design has been performed by Ifremer, research by using an important know how in float activities and well qualified subassemblies. NKE Instrumentation has achieved the industrial design.

ARVOR DO I: TS, DO, 2000m

Description - ARVOR DO I provides salinity, temperature, pressure and dissolved oxygen profiles with position information thanks to an integrated GPS receiver. Data are transmitted via Iridium satellites network.

Bluetooth technology enables easy and fast configuration before mission. Iridium downlink enables parameters modification remotely as soon as the ARVOR I surfaces.

With self-ballast and very light design, ARVOR I can be deployed by one person.

It capitalises on both the know-how of Ifremer in floats activities and designing qualified subassemblies; and of nke on industrial product development.

PROVOR CTS3: TS, 2000m, Argos

Description - PROVOR CTS3 is a reliable, cost-effective float with self-ballast that collects typically 112 data triplets (salinity, temperature and pressure) during its drifting and ascending phases. Once at the surface, these data are sent via the ARGOS system. The PROVOR CTS3 is designed to achieve up to 250 cycles.

More than 700 units have been produced since 1998.

PROVOR CTS3 can be launched from any vessel at slow speed using only a rope and at high speed (20 knots checked) by using release kit and launching crate. The PROVOR has been developed in industrial partnership with Ifremer.

PROVOR I: TS, 2000m, Iridium

Description - PROVOR I is an efficient and reliable autonomous profiling float designed to acquire CTD profiles from 2000 meters to the surface.

PROVOR I has been matched for long mission duration and high resolution profile: up to 300 cycles or up to 2000 CTD points the profile.

PROVOR I is proposed with GPS receiver and transmission through IRIDIUM constellation by using SBD or RUDICS mode. The two ways communication system enables: data and positioning collection, remote control facilities. Firmware is designed to transmit in shifted mode non transmitted profiles.

PROVOR CTS3 DO: TS, DO, 2000m, Argos2

Description - PROVOR CTS3 DO is efficient and reliable autonomous profiling floats designed to acquire CTD and Dissolved oxygen profiles: from 2000 m to the surface.

Once at the surface, data are sent via satellite and a new cycle begins.

The PROVOR DO is proposed with transmission by ARGOS that is one way data collection and positioning by satellites. The PROVOR is a cost-effective float with hydraulic feature enabling a deployment anywhere in the ocean without preballasting: this enables to simplify deployments.

It has been developed in industrial partnership with Ifremer.

PROVOR DO I: TS, DO, 2000m, Iridium

Description - PROVOR DO I is efficient and reliable autonomous profiling floats designed to acquire CTD and Dissolved oxygen profiles: from 2000 m to the surface.

Once at the surface, data are sent via satellite and a new cycle begins.

The PROVOR DO I is proposed with transmission by IRIDIUM. IRIDIUM associated with GPS is a two ways communication system enabling data collection, the positioning and remote control facilities.

The PROVOR is a cost-effective float with hydraulic feature enabling a deployment anywhere in the ocean without preballasting: this enables to simplify deployments.

It has been developed in industrial partnership with Ifremer.

Bio & specific profiling floats

nke Instrumentation has developed new kinds of specific profiling floats to be adapted to any environmental cases. In partnership with LOV (Laboratoire Oceanographique de Villefrance) and Ifremer, during the Remocean and Naos project, they have developed new kinds of profiling floats so that the PROVOR profiling float can embed additional sensors to the standard CTD. It means the floats are now capable to be part of various types of missions. NKE Instrumentation has also developed profiling float for Polar Regions to operate as well under ice than as floating offshore.

PROVOR CTS4: BGC, TS, 2000m, Iridium

Description - PROVOR CTS4 design was based on the PROVOR CTS3 ARGO float to embed additional sensors to the standard CTD. These are optical sensors by Satlantics, WetLabs or Aanderaa.

Developments by nke in collaboration with LOV (Villefranche Oceanographic Lab) and Ifremer enable PROVOR CTS4 to provide increased features.

PROVOR CTS5 -with camera: fully BGC-ARGO compliant for R&D and demanding application

Description - PROVOR CTS5 design was based on the PROVOR CTS3 ARGO float to embed additional sensors to the standard CTD. They are optical sensors by SeaBird, WetLabs, Hydroptic or Aanderaa.

Developments by nke Instrumentation in collaboration with LOV (Villefranche Oceanographic Lab) and Ifremer, enable PROVOR CTS5 to provide increased features

PROVOR NOSS

Description - A PROVOR-NOSS CTS4 profiling float equipped with NOSS sensor is becoming an essential and promise tool to estimate the anomalies of composition of seawater.

This new tool could contribute to improve the knowledge of absolute salinity and density of seawater across TEOS-10 (ARGRO program) and the accurate evaluation of the ocean’s role in heat transport and in climate changes.

It could initiate theoretical and experimental studies on the refractive index/density of seawater with anomalous composition.

PROVOR NOSS is qualified ARGO technology as there is the possibility to set various types of missions and is equipped with iridium telemetry providing increased data transmission and remote control.

PROVOR SPI: TS, DO, NO3 pH, 800m

Description - PROVOR SPI is designed to operate under ice. It slides along a tighted cable hanged under an Ice Tether Platform (ITP).

The base of the PROVOR SPI is the PROVOR CTS3 designed for the ARGO project. The firmware has been upgraded to optimize the diving mission. The ITP is an amphibious buoy which can operate as well on the ice than as floating offshore.

The communication with buoy is achieved by means of an inductive link communication with the buoy uses the bidirectional iridium communication system. The PROVOR SPI is divided in several easily transportable elements to enable transport by small aircrafts until deployment area.

PROVOR SPI has been successfully deployed during Barneo campaign in the frame of the Iaoos project.

High & low depth profiling floats

nke Instrumentation has developed very high and very low depth profiling floats. The DEEP ARVOR provides salinity, temperature and pressure profiles up to 4000 meters depth, using proven ARFO sensor and the data can also be transmitted by iridium satellite system and the float is GPS positioned. At the contrary, the ARVOR C is a subsurface profiling float designed to operate in coastal environment and perform oceanographic measurement as a pseudo-eulerian station It can perform more than 300 profiles and transmits its data via the iridium satellite system.

DEEP ARVOR: TS, 4000m

Description - The DEEP ARVOR provides salinity, temperature and pressure profiles up to 4000 meters depth, using proven ARGO sensors. Data are transmitted by IRIDIUM satellite system and the float is GPS positioned.

With self-ballast and light design, DEEP-ARVOR is self-ballasted and its light weight allows easy deployment.

Design has been performed by Ifremer well qualified Arvor subassemblies and new hull technologies nke instrumentation achieves the industrial, production and commercialization.

DEEP ARVOR DO

Description - The DEEP ARVOR DO provides salinity, temperature, pressure and dissolved oxygen profiles up to 4000 meters depth, using proven ARGO sensors. Data are transmitted by IRIDIUM satellite system and the float is GPS positioned.

With self-ballast and light design, DEEP-ARVOR is self-ballasted and its light weight allows easy deployment.

Design has been performed by Ifremer well qualified Arvor subassemblies and new hull technologies nke instrumentation achieves the industrial, production and commercialization.

ARVOR C: TS, DO, 400m

Description - ARVOR-C is a subsurface profiling float designed to operate in coastal environment and perform oceanographic measurements as a pseudo-eulerian station.

Its design has been optimized to reduce its drift thanks to a seabed standby and anti-drift claws, an optimized profiling speed (~25 cm/s),and a short data transmission duration.

It can perform more than 300 profiles, and transmits its data in real time via the Iridium satellite system. The ARVOR-C is fitted with "ARGO" used CTD.

The design of the ARVOR-C has used elements and know-how used in the ARVOR and PROVOR offshore profiling floats range.

PROVOR SPI: TS, DO, NO3 pH, 800m

Description - PROVOR SPI is designed to operate under ice. It slides along a tighted cable hanged under an Ice Tether Platform (ITP).

The base of the PROVOR SPI is the PROVOR CTS3 designed for the ARGO project. The firmware has been upgraded to optimize the diving mission. The ITP is an amphibious buoy which can operate as well on the ice than as floating offshore.

The communication with buoy is achieved by means of an inductive link communication with the buoy uses the bidirectional iridium communication system. The PROVOR SPI is divided in several easily transportable elements to enable transport by small aircrafts until deployment area.

PROVOR SPI has been successfully deployed during Barneo campaign in the frame of the Iaoos project.

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Data sheet

BUOYS AND MOORINGS
DRIFTERS
TYPE
BUOY
APLICATION
OCEANOGRAFICS

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