Calentamiento y aumento de la salinidad en el Mediterráneo Occidental durante la segunda mitad del siglo XX: Inconsistencias, incertidumbres e influencia del procesado de datos

Vargas‐Yáñez, Manuel; Moyá, Francina; Tel, E.; García-Martínez, M.C.; Guerber, Etienne; Bourgeon, Maxime

doi:10.3989/scimar.2009.73n1007

Cited by 33 publications

(20 citation statements)

References 29 publications

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“…23. reported mean trends for 1943–2000 of 0.004 °C yr −1 and 0.002 yr −1 , respectively for T and S, in the WMED.…”

Section: Resultsmentioning

confidence: 99%

“…2), we found slightly (but not significantly) lower trends (0.02 °C yr −1 , for T, and 0.005 yr −1 , for S), which are still higher that those calculated by ref. 23. These differences are potentially related to at least three aspects: (i) the trend increased recently, during 2010–2016 (it has more than doubled the longer term trend values), (ii) the SC record provides an “integral“ assessment of what happens in the EMED, while most previous studies were focusing on different regions (mainly of the WMED), where the signal carried by the IW could have been diluted by spreading along different pathways, and (iii) assessing long term trends based on continuous eulerian measurements gives different results to assessments based on sparse, in time and space, CTD casts.…”

Section: Resultsmentioning

confidence: 99%

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Rapid response to climate change in a marginal sea

Schröeder

Chiggiato

Josey

et al. 2017

Sci Rep

116

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The Mediterranean Sea is a mid-latitude marginal sea, particularly responsive to climate change as reported by recent studies. The Sicily Channel is a choke point separating the sea in two main basins, the Eastern Mediterranean Sea and the Western Mediterranean Sea. Here, we report and analyse a long-term record (1993–2016) of the thermohaline properties of the Intermediate Water that crosses the Sicily Channel, showing increasing temperature and salinity trends much stronger than those observed at intermediate depths in the global ocean. We investigate the causes of the observed trends and in particular determine the role of a changing climate over the Eastern Mediterranean, where the Intermediate Water is formed. The long-term Sicily record reveals how fast the response to climate change can be in a marginal sea like the Mediterranean Sea compared to the global ocean, and demonstrates the essential role of long time series in the ocean.

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“…23. reported mean trends for 1943–2000 of 0.004 °C yr −1 and 0.002 yr −1 , respectively for T and S, in the WMED.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Rapid response to climate change in a marginal sea

Schröeder

Chiggiato

Josey

et al. 2017

Sci Rep

116

View full text Add to dashboard Cite

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“…Methodological differences make it difficult to distinguish long-term changes from decadal and multi-decadal variability. Recent reviews (Vargas-Yáñez et al, 2009, 2010 have pointed out the difficulties assessing the mean trends of temperature and salinity because the scarcity of data makes trend estimations very sensitive to instrumental biases and data processing methods. Nevertheless, much effort is being made to integrate data from different sources and regions contributing to a better understanding of the variability of temperature and salinity in the Mediterranean.…”

Section: Introductionmentioning

confidence: 99%

Recent trends of SST in the Western Mediterranean basins from AVHRR Pathfinder data (1985–2007)

García

Belmonte

2011

Global and Planetary Change

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Keywords:sea surface temperature Western Mediterranean climate change warming trends Mediterranean warming AVHRR-NOAA seasonal and temporal variability Climate change in the Mediterranean region cannot be understood without taking into account changes in the Mediterranean Sea, which is an important source of moisture and heat for the Mediterranean climate system. Many research papers have been published in the last two decades increasing our knowledge about long-term trends and inter-annual variability of temperature and salinity in the Western Mediterranean. Although recent changes have been better documented, there remain uncertainties because different results are obtained depending on the period of time analyzed or the geographic region selected. This paper analyses the regional, seasonal and decadal variability of sea surface temperature in the Western Mediterranean basins (Northern (Ligurian Sea and Gulf of Lions), Balearic, Algerian and Alboran) by means of thermal satellite images. Monthly data from the PO.DAAC (Physical Oceanography Distributed Active Archive Center) have been processed for the period . Results show an averaged warming linear trend of 0.03°C/yr. This rate is higher during the spring (0.06°C/yr) in all the basins and the highest values were registered in the Northern basin in June. The study suggests that an early warming of the Sea is occurring in all the basins during the spring, with an increment of 0.5-1°C in the mean SST of April, May and June over the two decades studied. The analysis of thermal anomalies confirms the warming trend with a dominance of negative anomalies during 1985-1996 and a dominance of positive anomalies during the last decade (1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007). Intense anomalies are more frequent in the Northern basin.

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“…Lloret et al 2001, Martín et al 2008. Thus, the positive trends in temperature and salinity data observed during the second half of the twentieth century in the western Mediterranean Sea (Calvo et al 2012, Vargas-Yáñez et al 2009 could have affected the population dynamics of this small pelagic fish.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of adult anchovy in Catalonia (NW Mediterranean) in relation to sea surface conditions

2016

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Summary:Generalized additive and generalized additive threshold models were used to study the relationship between landings per unit effort (LPUE) of anchovy, Engraulis encrasicolus, during the spawning season (May-October) from 2000-2010, and environmental variables, using sea surface data derived from satellite imagery (temperature, salinity, chlorophyll a, and meridional and zonal velocity current) in three fishing zones defined along the Catalan coast. The configuration of the environment where spawning aggregations occur affects early life stages and therefore the future demographic structure of the population. It is therefore fundamental to define the environmental conditions and their variations during the spawning season. Our results show that the low salinity in the Northern and Central sector and the velocity of the zonal and meridional currents in the Central and Southern sector, respectively, implicated in retention processes, increase LPUE during the spawning period. Temperature was related to LPUE in the Southern and in the Northern sectors, in both of which a non-linear positive effect with a local maximum peak at lower temperature values was present. However, in the Northern sector, this relationship held only for the period before 2007. After 2007 the decrease in preferred temperature suggests a reduction of the thermal window in which adult spawner aggregations occur. In agreement with previous studies on this species, the relationships were non-linear, stressing the importance of the match in timing and location between favourable conditions and spawning period as a crucial event for understanding the dynamics of small pelagics populations.Keywords: Engraulis encrasicolus; NW Mediterranean; environmental conditions; anchovy landings; generalized additive models. Ocurrencia de anchoa adulta en Cataluña (Mediterráneo noroccidental) en relación a las condiciones superficiales del marResumen: Con el objeto de estudiar la relación entre descargas por unidad de esfuerzo (LPUE) de la anchoa, Engraulis encrasicolus, durante la época de puesta (Mayo-Octubre) y variables ambientales marinas obtenidas por observación de satélite (temperatura, salinidad, clorofila-a, velocidad de corriente zonal y meridional) se analizaron series de datos para el periodo 2000-2010 mediante modelos aditivos generalizados, con y sin umbral, en tres zonas de pesca de la costa catalana. La configuración del ambiente en que ocurren las agregaciones de puesta afecta a los estadios tempranos y, por consiguiente, a la estructura demográfica futura de las poblaciones. Por lo tanto es de gran importancia definir las condiciones ambientales y sus variaciones durante la época de puesta. Los resultados del análisis muestran que bajas salinidades en los sectores norte y central, y las velocidades zonal y meridional de la corriente, en los sectores central y sur respectivamente, implicadas en los procesos de retención hacen aumentar la LPUE durante el periodo de puesta. La temperatura se relacionó con la LPUE en los sectores sur y norte...

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Calentamiento y aumento de la salinidad en el Mediterráneo Occidental durante la segunda mitad del siglo XX: Inconsistencias, incertidumbres e influencia del procesado de datos

Cited by 33 publications

References 29 publications

Rapid response to climate change in a marginal sea

Rapid response to climate change in a marginal sea

Recent trends of SST in the Western Mediterranean basins from AVHRR Pathfinder data (1985–2007)

Occurrence of adult anchovy in Catalonia (NW Mediterranean) in relation to sea surface conditions

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