منابع مشابه
A new southern high-latitude index
We have developed and examined a new regional geomagnetic index AES-80, de®ned similarly to the classical auroral electrojet AE index, using data from ®ve Antarctic stations located at corrected geomagnetic latitudes about 80 °S. Because only sparse ground-based information can be derived from auroral latitudes in the Southern Hemisphere, and because no index comparable to AE can be constructed...
متن کاملDiversity and Distribution Patterns in High Southern Latitude Sponges
Sponges play a key role in Antarctic marine benthic community structure and dynamics and are often a dominant component of many Southern Ocean benthic communities. Understanding the drivers of sponge distribution in Antarctica enables us to understand many of general benthic biodiversity patterns in the region. The sponges of the Antarctic and neighbouring oceanographic regions were assessed fo...
متن کاملSouthern Ocean Overturning Role in Modulating High Southern Latitude Climate and Atmospheric CO2 on Millennial Timescales
During the last glacial period and particularly Marine Isotope Stage 3, North Atlantic Deep Water (NADW) formation weakened significantly on a millennial timescale leading to Greenland stadials (Kissel et al. 2008). Ice core records reveal that each Greenland stadial is associated with a warming over Antarctica, so-called Antarctic Isotope Maximum (AIM) (EPICA and Community Members 2006). Recen...
متن کاملHIGH LATITUDE GAMMA RAYS ASSOCIATED WITH VIRGO
A more detailed analysis is made of the energy spectrum of the diffuse component of extragalactic gamma rays over the range of 0.3- 10 GeV, obtained fromthe EGRET instrument at the Compton Gamma Ray Observatory. The derived excess energy spectrum of high galactic latitude, b > 60°, using intercept method shows that it is correlated with Virgo cluster (over lsr) and average Virgo intensity i...
متن کاملPronounced zonal heterogeneity in Eocene southern high-latitude sea surface temperatures.
Paleoclimate studies suggest that increased global warmth during the Eocene epoch was greatly amplified at high latitudes, a state that climate models cannot fully reproduce. However, proxy estimates of Eocene near-Antarctic sea surface temperatures (SSTs) have produced widely divergent results at similar latitudes, with SSTs above 20 °C in the southwest Pacific contrasting with SSTs between 5 ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1917
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/77.8.621