Polar cap absorption events of November 2001 at Terra Nova Bay, Antarctica
نویسندگان
چکیده
منابع مشابه
Formaldehyde determination in seawater. Preliminary application to coastal samples at Terra Nova Bay (Antarctica).
A sensitive spectrofluorimetric-FIA (flow injection analysis) method for formaldehyde (HCHO) determination was improved with the aim of analysing seawater samples. The fluorescence emission versus HCHO concentration shows a linear pattern from sub microg L(-1) to about 1000 microg L(-1). The reproducibility at 15 ppb level is about 2%. Interferences from other aldehydes were checked; only glyox...
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Given the diminished role of biotic interactions in soils of continental Antarctica, abiotic factors are believed to play a dominant role in structuring of microbial communities. However, many ice-free regions remain unexplored, and it is unclear which environmental gradients are primarily responsible for the variations among bacterial communities. In this study, we investigated the soil bacter...
متن کاملApplication of a Terrestrial LIDAR System for Elevation Mapping in Terra Nova Bay, Antarctica
A terrestrial Light Detection and Ranging (LIDAR) system has high productivity and accuracy for topographic mapping, but the harsh conditions of Antarctica make LIDAR operation difficult. Low temperatures cause malfunctioning of the LIDAR system, and unpredictable strong winds can deteriorate data quality by irregularly shaking co-registration targets. For stable and efficient LIDAR operation i...
متن کاملSummer Epiphytic Diatoms from Terra Nova Bay and Cape Evans (Ross Sea, Antarctica)--A Synthesis and Final Conclusions.
Despite recent advances in polar marine biology and related fields, many aspects of the ecological interactions that are crucial for the functioning of Antarctic shallow water habitats remain poorly understood. Although epiphytic diatoms play an essential role in the Antarctic marine food web, basic information regarding their ecology, biodiversity and biogeography is largely unavailable. Here,...
متن کاملThe Confluence Zone of the Intense Katabatic Winds at Terra Nova Bay, Antarctica, as Derived From Airborne Sastrugi Surveys and Mesoscale Numerical Modeling
The surface wind field inland of the intense coastal kataba!,•c wind regime at Terra Nova Bay, Antarctica, has been studied both observationally and numerically. Airborne surveys of windinduced features on the snow surface have been used to construct he time-averaged winter surface airflow pattern. The surface motion field has also been simulated by a mesoscale primitive equation model using te...
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ژورنال
عنوان ژورنال: Annales Geophysicae
سال: 2004
ISSN: 1432-0576
DOI: 10.5194/angeo-22-1633-2004