Streamlined, oval-shaped, oriented topographic highs in Massachusetts Bay are identified as the erosional remnants of drumlins. The topographic highs correlate with outlines of lag gravel deposits on the sea floor and both the highs and lag gravel
are significantly correlated with the Southern Oscillation Index (SOI) time-series (an indicator of ENSO events) when the Bering sea data are lagged behind the SOI for up to 18 months. The correlations suggest that warming in the Bering Sea follows negative
Interannual variability in air temperatures, ice cover, and surface winds in the Bering Sea generally are in phase with each other, whereas sea-surface temperatures (SST) tend to lag these variables by 1-3 months. These Bering Sea time-series
An attempt has been made to assess the association between cropped and irrigated area on the basis of product moment correlation coefficient. Andhra Pradesh is primarily an agricultural state where over one third of the net sown area is irrigated
. Rayalseema regions are lagging behind irrespect of agricultural production due to inadequate irrigation facilities. - (PLK)
and temperature correlate with measures of river stage, 2) what is the temporal (monthly) variability of these relationships, and 3) how do the concurrent relationships compare with lagged relationships.
Andes ; Argentina ; Correlation ; El Niño ; Flood ; Interannual variability ; Mountain ; Ocean atmosphere interaction ; Precipitation ; Stream ; Stream flow
The associations between mean annual stream flow records from 15 rivers draining the Argentine Andes, ranging from the Altiplano to Patagonia, and the Southern Oscillation Index (SOI) as established through simple lag cross-correlation, are examined
outflow through Fram Strait in various antecedent periods. Lagcorrelations indicate that interannual variations of summer ice severity in the Pacific side of the Arctic Basin are consistent with fluctuations of Fram Strait outflow during the previous 3-9
. However, California and Old World winter rain trends have been remarkably similar during this time period. Also, summer rain in northwestern Mexico (Mazatlan) correlates highly with winter rainfall in southern California (San Diego) when allowance is made
for a 7-year lag. Winstanley suggested that the expansion and contraction of the circumpolar vortex is a primary control of rainfall trends on the margins of the subtropical deserts. The alternative proposed here is that, at least on this time scale
Spatial correlations between urbanization and river water pollution in the heavily polluted area of Taihu Lake Basin, China
This article analyses the spatial correlations between urbanization and river water pollution in the heavily polluted area of Taihu Lake Basin, China. The results show that the urban township units have the highest level of urbanization and highest
by upstream pollution, but worst water quality. Lastly, urban and rural planning committees should gradually resolve the issue of pollution control lagging behind urban life and urban development, giving priority to construction of centralized sewage treatment
Bioclimatology ; China ; Correlation ; Grassland ; Interannual variability ; Inventory ; Precipitation ; Seasonal variability ; Space time ; Temperature ; Vegetation dynamics ; Vegetation index
, there are significant correlations between grass coverage with both temperature and precipitation, indicating that the grass coverage is more affected by seasonal fluctuations of hydrothermal conditions. The AA. find the climatic restrictive factors for each grassland
type. Additionally, there is one-month time lag-effect between grass coverage and climate factors for each grassland types.
that, on the within-flood scale, most of the sediment peaks lag behind peak discharges, implying that slope zones are the main sediment source area; independent of the occuring sequences of the peaks of sediment and discharge, all the events could present an anti
and late autumn, and exported in summer and early autumn. At the annual scale, the high variability in concentration and sediment yield are highly correlated with water yield, resulting from the number and magnitude of floods recorded yearly, and almost all
of scarp retreat rates and internal erosion processes also demonstrated that erosion from rainfall and runoff consistently supplied fine washload sediment in addition to coarse lags of sand bed material. Total sediment yield estimated from empirical
washload and theoretical bed material load was dominated by fine washload. A lack of hysteresis in suspended sediment rating curves, scarp retreat and sediment yield correlated to rainfall input, and an equilibrium channel outlet slope supported
Profiles were analysed in conjunction with wave climate to assess offshore island influences on an embayed beach at Tenby, Wales. Time series analyses showed medium and short-term beach oscillation, with volume exchanges between zones lagging by up
and statistical analyses agreed with wave model results. These were correlated to morphological change and it was concluded that offshore islands change wave dynamics and modify the morphology of embayed beaches in their lee. Consequently, this work provides
Data maps and correlation: tools for inquiry across disciplines
Cartographical display ; Correlation ; Mathematics ; Teaching of geography ; United States of America
This article explains how students can acquire a solid basis for building connections between mathematics and geography by studying correlations on maps and by making scatter diagrams. - (DWG)
ANALYSE DE CORRELATION CANONIQUE ; ANALYSE DES DONNEES ; ANALYSE MULTIVARIEE ; GEOGRAPHIE QUANTITATIVE ; Généralités sur la géographie ; METHODOLOGIE
L'A. RESITUE L'ANALYSE DE CORRELATION CANONIQUE DANS L'ENSEMBLE DES ANALYSES DE CORRELATION. L'ANALYSE CANONIQUE SERT A RECHERCHER LA CORRELATION MUTUELLE ENTRE 2 ENSEMBLES DE VARIABLES. MATHEMATIQUEMENT, LE PROBLEME REVIENT A TROUVER UNE
COMBINAISON LINEAIRE DES P VARIABLES DU PREMIER ENSEMBLE ET UNE COMBINAISON LINEAIRE DES Q VARIABLES DU SECOND ENSEMBLE TELLES QUE LEUR CORRELATION MUTUELLE SOIT MAXIMALE. CETTE CORRELATION DEPEND DONC DE LA STRUCTURE INTERNE DE CHACUN DES ENSEMBLES ET DE LA