Search results for "Temporal"

Near real-time estimation of Sea and Land surface temperature for MSG SEVIRI sensors

2020

Abstract Land and Sea Surface Temperatures (LST and SST) are both recognized as Essential Climate Variables, and are routinely retrieved by a wealth of satellites. However, for validated approaches, the latest data are usually not available to the general public. We offer to bridge this gap, by using Meteosat Second Generation (MSG) Spinning Enhanced Visible and InfraRed Imager (SEVIRI), with its 15 min temporal resolution. Here, we present generic algorithms for the retrieval of both LST and SST, valid for the SEVIRI instrument onboard MSG platforms 8–11, which we validate using hourly data of 4 ground stations and 11 buoys in Spain over the years 2015 to 2018. These validations show that …

Characterizing land condition variability in Ferlo, Senegal (2001–2009) using multi-temporal 1-km Apparent Green Cover (AGC) SPOT Vegetation data

2011

Abstract The ecosystem state or ‘land condition’ can be characterized by a set of attributes, which show variations at different temporal scales. A multi-resolution analysis (MRA) based on the wavelet transform (WT) has been implemented to examine the land condition of a dryland region in Ferlo (Senegal) over the period 2001–2009. This methodology has proven to be useful for smoothing time series while considering those temporal resolutions that incorporate information about the vegetation dynamics. For this purpose, time series of the 1-km Apparent Green Cover (AGC) from the 10-day composites SPOT Vegetation (VGT) data are analyzed. Two relevant outputs from the MRA, A 1 (de-noised) and th…

Arctica islandica (Bivalvia): A unique paleoenvironmental archive of the northern North Atlantic Ocean

2013

Abstract High-resolution environmental proxy data from the extratropical North Atlantic prior to the instrumental era are of critical importance to decipher processes and mechanisms of global change. In this regard, shells of the extremely long-lived bivalve mollusc, Arctica islandica ( Linnaeus, 1767 ), have gained particular attention during the last decade because they serve as reliable, subseasonally resolved multi-proxy archives of environmental variability in that very region. With a lifespan of more than 500 years, A. islandica is the longest-lived solitary animal. Its shell grows periodically throughout life and contains distinct annual and daily growth increments. These growth patt…

Intercomparison and quality assessment of MERIS, MODIS and SEVIRI FAPAR products over the Iberian Peninsula

2013

Abstract The fraction of absorbed photosynthetically active radiation (FAPAR) is a key variable in productivity and carbon cycle models. The variety of available FAPAR satellite products from different space agencies leads to the necessity of assessing the existing differences between them before using into models. Discrepancies of four FAPAR products derived from MODIS, SEVIRI and MERIS (TOAVEG and MGVI algorithms), covering the Iberian Peninsula from July 2006 to June 2007 are here analyzed. The assessment is based on an intercomparison involving the spatial and temporal consistency between products and a statistical analysis across land cover types. In general, significant differences ar…

Testing for Government Intertemporal Solvency: A Smooth Transition Error Correction Model Approach

2001

Applied macroeconomists have tested for the government intertemporal solvency condition by either testing for linear stationarity in the total government deficit series or testing for linear cointegration between total government spending and total tax revenues. A number of authors have focused, in particular, on structural breaks in the government deficit process. In this paper, we use a smooth transition error correction model to test and estimate a shift in the adjustment toward a linear cointegration relationship between the government spending to output ratio and the total tax revenues to output ratio. Estimation results show that government authorities react only to large (in absolute…

2021

Ein Beitrag zur metrischen Geschlechtsdiagnose verbrannter und unverbrannter menschlicher Knochenreste?ausgearbeitet an der Pars petrosa ossis tempor…

1981

Die vorliegende Arbeit prasentiert eine neue Methode zur Geschlechtsdiagnose, eine uni-, di- und multivariate Analyse der Pars petrosa, eines Teiles des Schlafenbeines — angeregt durch das haufige Auftreten dieser Struktur in Leichenbranden. Wie der Vergleich der Irrtumswahrscheinlichkeiten zweier Diskriminanzfunktionen zeigt, erweist sich die Einbeziehung aller erhobenen Variablen als vorteilhaft. Schon die Berucksichtigung von nur drei Masen fuhrt zu einer geringeren Fehlerquote bei der Geschlechtszuweisung als bei einigen konventionellen Verfahren. Abschliesend wird das Problem der Schrumpfung fur die Ubertragbarkeit der Methode auf Leichenbrandmaterial erortert, und schrumpfungskorrigie…

Corps et temporalité dans l’expérience du handicap physique. Dialogue avec Marcel Nuss

2016

National audience; Les personnes atteintes par la dépendance, notamment physique, renvoient des Limages de lenteur, d’impouvoir, de limitation. Mais au-delà de cette apparence, il convient de s’interroger sur le style temporel propre à chacun, sur le dynamisme psychique qui ne cadre pas toujours avec le rythme ralenti ou l’immobilité du corps visible, mais en revanche s’exprime dans le vécu du corps et dans l’image inconsciente du corps. Nous verrons comment l’expérience originale du corps atteint par le handicap peut permettre de développer une autonomie particulière dans le rapport à soi et à la sensorialité, sans condamner le rapport à l’avenir et à ses possibles, l’attention au temps de…

Spatio-temporal cluster detection of chickenpox in Valencia, Spain in the period 2008-2012.

2015

Chickenpox is a highly contagious airborne disease caused by <em>Varicella zoster</em>, which affects nearly all non-immune children worldwide with an annual incidence estimated at 80-90 million cases. To analyze the spatiotemporal pattern of the chickenpox incidence in the city of Valencia, Spain two complementary statistical approaches were used. First, we evaluated the existence of clusters and spatio-temporal interaction; secondly, we used this information to find the locations of the spatio-temporal clusters via the space-time permutation model. The first method used detects any aggregation in our data but does not provide the spatial and temporal information. The second me…

Everyday Family Life: Dimensions, Approaches, and Current Challenges

2009

The aim of this systematic literature review was to identify, categorize, and evaluate the empirical research that has been conducted on everyday family life. Fifty-three empirically based articles focusing on everyday family life were included in the analysis, which focused on the conceptual, empirical, and theoretical content. According to our review, everyday family life comprises three dimensions: emotions, actions, and temporality. It is a continuously constructed process in which family members transmit emotions, engage in activities, and schedule timetables in the course of interactions with each other and with the wider social context. Three empirical or theoretical approaches were …