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  • CRREL Ice Mass Balance buoy; East Antarctica; IMB; Landfast ice; Sea ice mass balance; Temperature; ZS2009; ZS2009_IMB  (1)
  • Chemistry  (1)
  • DATE/TIME; DS2014; DS2014_SIMBA; East Antarctica; Landfast ice; Latitude of event; Longitude of event; SAMS Ice Mass Balance buoy; Sea ice mass balance; SIMBA; Temperature; Temperature, technical  (1)
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  • 1
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    Unknown
    Temperature measurements from SIMBA-type sea ice mass balance buoy DS2014 (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Temperature and heating-induced temperature differences were measured along a chain of thermistors. SIMBA DS2014 is an autonomous instrument that was installed on landfast ice in Prydz Bay, East Antarctica, in May 2014. The buoy was deployed at 68.57°S; 77.93°E, ~1.5 km northwest of Australian Station Davis with initial thicknesses of snow and ice of 0.06 and 0.58 m, respectively, on 29 May 2014. The thermistor chain was 5 m long and included 240 sensors with a regular spacing of 2cm. The resulting time series describes the evolution of temperature and temperature differences after two heating cycles of 30 and 120 s as a function of depth and time between 29 May and 4 November 2014 in sample intervals of 2~6 hours for temperature and 24 hours for temperature differences.
    Keywords: DATE/TIME; DS2014; DS2014_SIMBA; East Antarctica; Landfast ice; Latitude of event; Longitude of event; SAMS Ice Mass Balance buoy; Sea ice mass balance; SIMBA; Temperature; Temperature, technical
    Type: Dataset
    Format: text/tab-separated-values, 275281 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Temperature and mass balance measurements from sea ice mass balance buoy ZS2009, deployed on landfast ice of east Antarctica (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: CRREL-type IMB ZS2009 is an autonomous instrument that was installed on the landfast sea ice in Prydz Bay, east Antarctica in July 2009. The buoy was deployed at 69.36°S; 76.42°E, ~3 km from the coast of Station Zhongshan with initial thicknesses of snow and ice of 0.01 and 1.00 m, respectively, on 10 July 2009. Snow/Ice temperature and mass balance were measured along a chain of thermistors and via acoustic rangefinder sounders. The thermistor chain was 4.5 m long and included 45 sensors with a regular spacing of 10cm. The acoustic sensors were located above and below the ice surface, monitoring the position of the top and bottom surfaces of the ice. The resulting time series describes the evolution of temperature and snow/ice mass balance as a function of time between 10 July and 12 December 2009 in sample intervals of 2 hours. The data from the underwater acoustic sounder were available only from 10 July to 2 August 2009 because of a sensor failure.
    Keywords: CRREL Ice Mass Balance buoy; East Antarctica; IMB; Landfast ice; Sea ice mass balance; Temperature; ZS2009; ZS2009_IMB
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
    Electronic Resource
    Electronic Resource
    Water solubility of regioselectively 2,3-O-substituted carboxymethylcellulose (1997)
    Weinheim : Wiley-Blackwell
    Macromolecular Rapid Communications 18 (1997), S. 921-925 
    Details
    ISSN: 1022-1336
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A series of 2,3-O-carboxymethylcelluloses (CMC's), which are regioselectively substituted at the C-2 and C-3 position, were prepared and their water solubility was examined. It was found that the lower limit for the degree of substitution (DS) value of water-soluble 2,3-O-CMC is about 0.3. This value was almost the same as that of CMC prepared in a slurry of isopropyl alcohol/water with isopropyl chloroacetate and sodium hydroxide, showing that the uniform alkylation is rather important to convert cellulose into water-soluble derivatives.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/marc.1997.030181005
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    Paper (German National Licenses)
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