Latest publications
Results 2976 to 3000 of 8726
New techniques have been developed to aid in the remote sensing of type … II Polar Stratospheric Clouds (PSCs) using NASA’s MODIS (MODerate resolution … Imaging Spectroradiometer) nadir imaging satellite.
Southern elephant seals are important apex … predators in a highly variable and unpredictable marine … environment. In the presence of resource limitation, foraging behaviours evolve to reduce intraspecific … competition increasing a species’ overall … probability of successful foraging.
We filmed Southern Giant Petrels Macronectes giganteus as they pursuit dived on a submerged Weddell Seal Leptonychotes weddellii … carcass.
The process of marking otherwise indistinguishable animals … as individuals (and following them through subsequent … phases of their lives) has been central to numerous advances … in animal ecology, management, and conservation (Caughley … and Gunn 1996). Indeed…
There are continuing efforts to refine our understanding of the association … between Polar Mesospheric Clouds (PMCs) and Polar Mesosphere Summer Echoes … (PMSEs).
The existence of Polar Mesosphere Summer Echoes (PMSE) in the Southern … Hemisphere (SH) has been confirmed using MST radar, HF radar and a Dynasonde. Studies spanned the geographic latitudes 62.1°S (Machu Picchu), 68.6°S (Davis), 69.0°S (Syowa), and 75.5°S (Halley Bay).
Mesosphere Summer Echoes (MSE) have been observed with 50-MHz VHF … radars at middle (MSE) and polar latitudes (PMSE) in the Northern Hemisphere for … more than 20 years. However measurements in the Southern Hemisphere were in the … past rare and limited to low southern latitudes.