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2011

716 record(s)

 

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From 1 - 10 / 716
  • Categories  

    WIS/GTS bulletin UKBM01VBRR; in code form: FM35 TEMP; disseminated via: RTH BANGKOK; remarks: TEMP; stations: 48097 YANGON (16 46 00N, 096 10 00E, 14 m).

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    The FRAMZY 2008 experiment aimed at the measurement of the sea ice drift in the Fram Strait and its relation to the atmospheric forcing, primarily to that by cyclones. FRAMZY 2008 was the fourth experiment with this objective and followed the FRAMZY experiments in 1999, 2002 and 2007. On 20 January 2008, seven CALIB (Compact Air-Launch Ice Buoys) buoys were deployed from a transport aircraft in a regular array of 200 km by 100 km size centered at 82.6¿N, 1.0¿E in the northern part of Fram Strait. Buoys measured autonomously air pressure, temperature and position at approximately one-hourly intervals and transmitted the data via the Argos satellite system. The lifetime of the buoys before they were lost at the ice edge or due to the breaking of ice was between 7 and 39 days (final date 28 February 2008). The southernmost position reached by a buoy after 39 days was 76.2¿N, -12.0¿E, corresponding to an average drift speed of 16.9 km per day or 0.20 ms-1. During the FRAMZY 2008 period eight cyclones passed through Fram Strait. The paper presents details of the ice motion and the atmospheric conditions. In the appendix 12-hourly maps of sea-level pressure and surface air temperature as analysed by the ECMWF, daily maps of ice concentration and daily NOAA satellite images are presented.

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    Radial data files contain radial components of sea surface parameters measured by HF ocean radars operated by Australian Coastal Ocean Radar Network (ACORN), a facility of Integrated Marine Observing System (IMOS). Regardless of the radar system (WERA or SeaSonde), the primary product is the radial component of the sea surface current along a line between the radar station and a point on the sea surface. By combining radials measured at two stations surface current vectors can be constructed. These surface current vectors can then be used to study tides, wind-driven currents and perform lagrangian particle tracking. Raw data collected at each radar site are re-processed by ACORN in order to assign quality control flags to data points. This is not possible in real-time because real-time data are produced by proprietary manufacturer software without quality control flags and it is not feasible to transfer the raw data to ACORN in real-time. Each radial file contains a set of standard metadata fields, such as radar system type, operating frequency and bandwidth. Other metadata fields describe radar system type-specific parameters. Radial file metadata fields are described in a separate ACORN data document. In addition, for WERA radar systems, ACORN provides quality controlled heights of left and right bragg peaks, from which the wind direction can be inferred.

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    The dataset contains temperature, salinity and biological parameters including dissolved oxygen and turbidity data measured by a Slocum glider in the region of Two Rocks (Western Australia). Slocum glider data from the oceans around Australia have been collected by ANFOG since June 2008 and are ongoing. The data are obtained from an onboard suite of instruments which include Seabird-SBE41 CTD (Conductivity, Temperature, Depth), WETLabs BBFL2SLO 3 parameter optical sensor (measuring Chlorophyll-a, CDOM and 700nm Backscatter) and an Aanderaa oxygen optode (measuring concentration of dissolved oxygen in seawater.

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    The dataset contains temperature, salinity and biological parameters like for example dissolved oxygen and turbidity data measured by a Slocum glider in the region of Marion Bay (South Australia). The Australian National Facility for Ocean Gliders (ANFOG) manages three Slocum gliders to be deployed on the continental shelf. The variables available in this dataset are: Temperature, salinity, conductivity, density, pressure, chromophoric dissolved oxygen matter, dissolved oxygen, fluorescence and backscatter coefficient at 660nm.

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    The dataset contains temperature, salinity and biological parameters like for example dissolved oxygen and turbidity data measured by a Slocum glider in the region of Two Rocks (Western Australia). The Australian National Facility for Ocean Gliders (ANFOG) manages three Slocum gliders to be deployed on the continental shelf. The variables available in this dataset are: Temperature, salinity, conductivity, density, pressure, chromophoric dissolved oxygen matter, dissolved oxygen, fluorescence and backscatter coefficient at 660nm.

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    The dataset contains temperature, salinity and biological parameters like for example dissolved oxygen and turbidity data measured by a Slocum glider in the region of Two Rocks (Western Australia). The Australian National Facility for Ocean Gliders (ANFOG) manages three Slocum gliders to be deployed on the continental shelf. The variables available in this dataset are: Temperature, salinity, conductivity, density, pressure, chromophoric dissolved oxygen matter, dissolved oxygen, fluorescence and backscatter coefficient at 660nm.

  • Categories  

    The dataset contains temperature, salinity and biological parameters like for example dissolved oxygen and turbidity data measured by a Slocum glider in the region of Two Rocks (Western Australia). The Australian National Facility for Ocean Gliders (ANFOG) manages three Slocum gliders to be deployed on the continental shelf. The variables available in this dataset are: Temperature, salinity, conductivity, density, pressure, chromophoric dissolved oxygen matter, dissolved oxygen, fluorescence and backscatter coefficient at 660nm.

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    This dataset contains quality controlled meteorological observations and bulk air-sea fluxes. Enhancement of Measurements on Ships of Opportunity (SOOP) - Air Sea Flux (ASF) R.V. Aurora Australis collects underway meteorological and oceanographic observations during scientific and Antarctic resupply voyages in the oceans adjacent to Australia. Data streams are fed into the existing ship data management system, and broadcast via satellite back to Australia 30 minutes. The observations are quality controlled at the Bureau of Meteorology and air-sea fluxes calculated using the COARE Bulk Flux algorithm. A daily file of 5-minute average calculated bulk fluxes are generated shortly after 0000UTC and provided to eMII. The data is contained in NetCDF format files and consists of input QC'd meteorological observations as well as calculated air-sea fluxes. The fluxes are calculated using the COARE Bulk Flux algorithm version 3.0. Input observations are selected from multiple data-streams in the cases of; wind (upwind instrument selected); air temperature and humidity (upwind instrument selected), and short (maximum value used) and long-wave (minimum value used). Other input observations included are sea surface temperatures (SST) and air pressure. Calculated fluxes include, sensible heat, latent heat, outgoing long-wave, outgoing short-wave and heat due to precipitation. The calculated skin SST value is included. Flags are provided to indicate which sensor (when multiple are available) has been used as input to compute the flux. QC flags are not provided as fluxes are only computed when good data is available.

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    The dataset contains temperature, salinity and biological parameters like for example dissolved oxygen and turbidity data measured by a Slocum glider along the coast of New South Wales. The Australian National Facility for Ocean Gliders (ANFOG) manages three Slocum gliders to be deployed on the continental shelf. The variables available in this dataset are: Temperature, salinity, conductivity, density, pressure, chromophoric dissolved oxygen matter, dissolved oxygen, fluorescence and backscatter coefficient at 660nm.