Results 31 to 40 of about 301,665 (287)
Northern hemisphere photosynthetic trends 1982–99
Global Change Biology, 2002 AbstractWe examined trends in the averaged May–September AVHRR normalized difference vegetation index (NDVI) from 1982 to 1999 for the northern hemisphere. NDVI is closely related to the amount of absorbed photosynthetically active radiation; hence, trends in NDVI reflect trends in photosynthetic activity of land‐surface vegetation.
Daniel A. Slayback +3 more
openaire +3 more sources
Numerical simulations of oceanic oxygen cycling in the FAMOUS Earth-System model: FAMOUS-ES, version 1.0 [PDF]
Geoscientific Model Development, 2014 Addition and validation of an oxygen cycle to the ocean component of the FAMOUS climate model are described. At the surface, FAMOUS overestimates northern hemisphere oxygen concentrations whereas, at depth, the southern hemisphere values are too low ...
J. H. T. Williams +3 more
doaj +1 more source
Effects of Planetary Wave-breaking on the Seasonal Variation of Total Column Ozone [PDF]
, 2000 The effects of planetary wave breaking on the seasonal variation of total column ozone are investigated using a zonally averaged chemical-radiative-transport model of the atmosphere.
Andrews +12 more
core +2 more sources
Mesoscale temperature fluctuations in the Southern Hemisphere stratosphere [PDF]
Atmospheric Chemistry and Physics, 2008 Isentrope surfaces in the Southern Hemisphere stratosphere reveal that air parcels undergo mesoscale temperature fluctuations that depend on latitude and season.
B. L. Gary
doaj
On monthly weather anomalies in the Northern Hemisphere in winter
Meteorologische Zeitschrift, 2015 This paper is the edited translation of a short paper by Felix Exner “Über monatliche Witterungsanomalien auf der nördlichen Halbkugel im Winter” (On monthly weather anomalies in the Northern Hemisphere in winter), which was published in Meteorologische ...
Felix M. Exner +2 more
doaj +1 more source
Northern Hemisphere interdecadal variability: A coupled air-sea mode [PDF]
, 1998 A coupled air–sea mode in the Northern Hemisphere with a period of about 35 years is described. The mode was derived from a multicentury integration with a coupled ocean–atmosphere general circulation model and involves interactions of the thermohaline ...
Grötzner, A. +3 more
core +1 more source
Metastability of Northern Hemisphere Teleconnection Modes
Journal of the Atmospheric Sciences, 2015 Abstract This study applies a finite-element, bounded-variation, vector autoregressive method to assess midtropospheric flow regimes characterized by regime switches between metastable states. The flow is assessed in reanalysis data from three different reanalysis sets assimilating surface data only; surface and upper-air data; and ocean,
Risbey, J. +4 more
openaire +2 more sources
Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
Change in Earth’s solar climate over the period from 1900 to 2100
Solar-Terrestrial PhysicsThe paper presents the results of the analysis of changes in Earth’s solar climate over the period from 1900 to 2100. It has been determined that the annual meridional gradient of irradiation intensity from 1900 to 2100 and latitudinal differences in the
Fedorov Valery, Frolov Denis
doaj +1 more source
Active Latitude Oscillations Observed on the Sun
, 2016 We investigate periodicities in mean heliographic latitudes of sunspot groups, called active latitudes, for the last six complete solar cycles (1945-2008). For this purpose, the Multi Taper Method and Morlet Wavelet analysis methods were used.
Clette, F. +4 more
core +3 more sources