Deutsches Ozeanographisches
Datenzentrum
Inventur der Lance-Reise IRO-2 (DOD-Ref-No.20140282)
Inventory of Lance Cruise IRO-2 (DOD-Ref-No.20140282)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Lance | IRO-2 | 15.03.2014 - 29.03.2014 | IRO |
Barents Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Kaleschke Lars | UNI HAMBURG | Longyearbyen | Longyearbyen | Karte Map |
Ziel der Reise / Objectives of Cruise:
The cruise of the RV LANCE (14th - 29th March 2014) was part of the German research project IRO-2 (Ice Route Optimization), funded by the German Ministry of Economics and Energy and coordinated by the Hamburg Ship Model Basin (HSVA). The objective of IRO-2 is to develop a software tool which predicts the most efficient route in terms of safety and timesaving for ships navigating in ice infested Arctic waters. The software tool is based on a high resolving coupled Atmosphere-Sea Ice-Ocean model predicting ice thickness and concentration and developed by scientists of the University of Hamburg and Alfred Wegener Institute. The predicted ice data are used by a software (developed by the HSVA) calculating time optimized routing alternatives. Ice forecasts and optimized routing alternatives are converted into ECDIS (Electric Chart Display) format and transmitted via Iridium satellite link to the ship in order to be present in a overlay technique on an ECDIS system. The same link was used to send routing prediction request from the ship to the shore. University of Hamburg chartered the RV Lance in order to test the IRO-2 system under real conditions in the ice-covered region of the Barents Sea east of Svalbard. The main goal of the cruise was to validate the IRO-2 system performance by passing through the proposed ice routes while assessing the relation of ships performance and ice conditions. Hence, real-time ice thickness measurements using an EM31-ICE electromagnetic induction device mounted at the bow of the Lance were of particular importance. Ice/open-water detection by real-time measurements was completed by a KT19 radiation thermometer measuring surface temperature in front of the bow. Additional ice information was gathered by visual observations and by employing cameras. 33 CTD profile soundings were performed to collect oceanographic data designed for validation of the ocean component of the IRO-2 Atmosphere-Sea Ice-Ocean model. A compound of meteorological sensors (two WXT-weather stations, two HMP155 humidity sensors, one ultrasonic wind anemometer, one pyrgeometer and one CM 11 pyranometer, one cloud camera) were installed at different heights on board the Lance to measure temperature, humidity, wind velocity and direction, long- and short-wave downward radiation and cloud coverage to be used for validation of the atmospheric component of the model. A Helicopter carried by the Lance and chartered by the Norwegian Polar Institute (NPI) and by the European Space Agency (ESA) performed airborne ice thickness measurements by using an EM-Bird. Eight measuring flights of all in all 1850 km length were performed to collect ice thickness data designed for validation of modelled ice thickness and space-borne SMOS and CRYOSAT ice thickness measurements. Two of these flights were coordinated flights together with the research aircraft POLAR5 (Alfred Wegener Institute, AWI) on the same flight track. The POLAR5 was chartered by the ESA The measurement setup was accompanied by 15 CALIB ice buoys to determine ice drift velocity and direction. These buoys were deployed by aircraft on 10th March 2014 within the framework of a project of the Institute of Oceanography of the University of Hamburg.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
UNIHH | Kaleschke Lars | 33 | stations | H00 Stations |
- | no |
UNIHH | Pohlmann Thomas | 33 | profiles | H10 CTD-Stations |
Conductivity, temperature, depth by Seabird SBE 911plus with 2 conductivity sensors and 2 temperatures sensors. | no |
MIHH | Muller Gerd | 10 | day(s) | M04 Ice observations |
Continuous measurement of ice/open water tempearture by radiation thermometer KT19, 10 Hz. | no |
MIHH | Muller Gerd | 12 | day(s) | M04 Ice observations |
Visual ice observations, WMO egg-code, every 0.5 hour. | no |
UNIHH | Kaleschke Lars | 8 | flight(s) | M04 Ice observations |
Airborne ice thickness measurements by EM-Bird. | no |
UNIHH | Kaleschke Lars | 10 | day(s) | M04 Ice observations |
Continuous measurement of ice thickness by electromagnetic profiler EM-31. | no |
MIHH | Muller Gerd | 10 | day(s) | M90 Other meteorological measurements |
Continuous measurement of meteorological parameters temperature, humidity, wind velocity and direction, long and shortwave downward radiation, cloud coverage by 2 WXT-weather stations, 2 HMP155 humidity sensors, 1 ultrasonic wind anemometer, 1 pyrgeometer,1 CM 11 pyranometer, 1 cloud camera. | no |