Now showing items 41-50 of 6159
Expectation-maximization analysis of spatial time series
(Copernicus Publications on behalf of the European Geosciences Union and the American Geophysical Union, 2007-02-01)
Expectation maximization (EM) is used to estimate the parameters of a Gaussian Mixture Model for spatial time series data. The method is presented as an alternative and complement to Empirical Orthogonal Function (EOF) ...
South China Sea hydrological changes and Pacific Walker Circulation variations over the last millennium
(Nature Publishing Group, 2011-04-26)
The relative importance of north–south migrations of the intertropical convergence zone (ITCZ) versus El Niño-Southern Oscillation and its associated Pacific Walker Circulation (PWC) variability for past hydrological change ...
Testing for a shift in a species boundary
One predicted impact of climate change is a poleward shift in the boundaries of species ranges. Existing methods for identifying such a boundary shift based on changes in the observed pattern of occupancy within a grid ...
Variations of the global net air–sea heat flux during the “hiatus” period (2001–10)
(American Meteorological Society, 2016-05-15)
An assessment is made of the mean and variability of the net air–sea heat flux, Qnet, from four products (ECCO, OAFlux–CERES, ERA-Interim, and NCEP1) over the global ice-free ocean from January 2001 to December 2010. For ...
High-sensitivity measurement of diverse vascular plant-derived biomarkers in high-altitude ice cores
(American Geophysical Union, 2009-07-03)
Semi-volatile organic compounds derived from burned and fresh vascular plant sources and preserved in high-altitude ice fields were detected and identified through use of recently developed analytical tools. Specifically, ...
Bottom array specifications for the low frequency acoustic seismic experiment (LFASE)
(Woods Hole Oceanographic Institution, 1991-10)
The Low Frequency Acoustic Seismic Experiment (LFASE) was conducted to measure sound propagation and ambient noise above, at and below the sea floor. To this end an array consisting of four geophone nodes was introduced ...
Sound Cut, Record Number 93570008
(Woods Hole Oceanographic Institution, 1993-11-10)
Recording of 3-4 sperm whales made by AG-6400, Benthos towed array. Tagged whale. This is the complete coda exchange.
Sound Cut, Record Number 9101301k
(Woods Hole Oceanographic Institution, 2003-06-10)
Recording of ten or more Fraser’s dolphins made by Ithaco 602M108 hydrophones, Ithaco 451 amplifiers, WHOI/PEMTEK tape recorder. Good clicks and whistles. Feeding at surface.
Sound Cut, Record Number 5702100j
(Woods Hole Oceanographic Institution, 2003-05-15)
Recording of two Short-finned pilot whales made by RG AX58 Hydrophone, WHOI battery amp, Magnemite recorder. Good clicks, click series and squeals.
Sound Cut, Record Number 64103cut2_02
(Woods Hole Oceanographic Institution, 2009-09-17)
Recording of unknown number of Common minke whales made by Uher recorder, LC 50 hydrophone.