15 research outputs found
Construction and characterization of mutants impaired in the biosynthesis of the K88ab antigen
Organization of K88ac-encoded polypeptides in the Escherichia coli cell envelope: use of minicells and outer membrane protein mutants for studying assembly of pili
Decadal glacial lake changes in the Koshi basin, central Himalaya, from 1977 to 2010, derived from Landsat satellite images
Cloning and expression in Escherichia coli and Bacillus subtilis of the hemolysin (cereolysin) determinant from Bacillus cereus
Global Land Ice Measurements from Space (GLIMS): remote sensing and GIS investigations of the Earth's cryosphere
Concerns over greenhouseâgas forcing and global temperatures have initiated research into understanding climate forcing and associated Earthâsystem responses. A significant component is the Earth's cryosphere, as glacierârelated, feedback mechanisms govern atmospheric, hydrospheric and lithospheric response. Predicting the human and natural dimensions of climateâinduced environmental change requires global, regional and local information about iceâmass distribution, volumes, and fluctuations. The Global LandâIce Measurements from Space (GLIMS) project is specifically designed to produce and augment baseline information to facilitate glacierâchange studies. This requires addressing numerous issues, including the generation of topographic information, anisotropicâreflectance correction of satellite imagery, data fusion and spatial analysis, and GISâbased modeling. Field and satellite investigations indicate that many small glaciers and glaciers in temperate regions are downwasting and retreating, although detailed mapping and assessment are still required to ascertain regional and global patterns of iceâmass variations. Such remote sensing/GIS studies, coupled with field investigations, are vital for producing baseline information on glacier changes, and improving our understanding of the complex linkages between atmospheric, lithospheric, and glaciological processes