scholarly journals A deep seismic crustal transect from the NE Iberian Peninsula to the western Mediterranean

1998 ◽  
Vol 103 (B6) ◽  
pp. 12381-12396 ◽  
Author(s):  
Neus Vidal ◽  
Josep Gallart ◽  
Juan José Dañobeitia
Keyword(s):  
Iberian Peninsula ◽  
Western Mediterranean ◽  
Crustal Transect ◽  
Ne Iberian Peninsula

scholarly journals Historical flash floods retromodelling in the Ondara River in Tàrrega (NE Iberian Peninsula)

2011 ◽  
Vol 11 (12) ◽  
pp. 3359-3371 ◽  
Author(s):  
J. C. Balasch ◽  
J. L. Ruiz-Bellet ◽  
J. Tuset
Keyword(s):  
Iberian Peninsula ◽  
Cross Section ◽  
Mediterranean Region ◽  
Peak Flow ◽  
Flash Floods ◽  
Western Mediterranean ◽  
Peak Flows ◽  
The Town ◽  
Ne Iberian Peninsula ◽  
Morphology Changes

Abstract. Flash floods in the Ondara River have caused many fatalities and damages in the town of Tàrrega in the last 400 yr. Unfortunately, no flow records are available. However, floods can sometimes be reconstructed thanks to available historical information: limnimarks, written accounts and archaeological surveys. Indeed, from these data and using the retromodelling method on three different scenarios to take into account morphology changes, the peak flows of the seven greatest floods occurred in Tàrrega since the 17th century were estimated. The results showed that the heaviest flood's specific peak flow (10.7 m3 s−1 km−2) ranks among the highest ever modelled or measured in similar-sized catchments in the Western Mediterranean region. The results pointed out, as well, that the changes in channel's morphology (mainly, the disappearance of a mediaeval bridge under sediment) caused by one of the floods increased the hydraulic capacity of a crucial cross-section. All this resulted in modest floods invading the town less often, but with much faster and, thus, more destructive flows. A preliminary estimation of the results' uncertainty was 4% for great floods and 18% for modest floods. The reconstructed peak flows will be introduced in a database for a future use in climatic and hydrological studies.

Durum wheat and barley yields in antiquity estimated from 13C discrimination of archaeological grains: a case study from the Western Mediterranean Basin

1999 ◽  
Vol 26 (4) ◽  
pp. 345 ◽  
Author(s):  
I. Romagosa ◽  
G. A. Slafer ◽  
J. L. Araus
Keyword(s):  
Durum Wheat ◽  
Iberian Peninsula ◽  
Middle Ages ◽  
Mediterranean Basin ◽  
Western Mediterranean ◽  
13C Discrimination ◽  
Western Mediterranean Basin ◽  
Ne Iberian Peninsula ◽  
Se Iberian Peninsula

This study develops a novel approach by which to estimate cereal yields in ancient times based on the 13C discrimination (Δ) of ancient grains. First, a yield model based on Δ in grains from modern durum wheat (Triticum durum Desf.) and barley (Hordeum vulgare L.) crops was developed using a wide range of genotypes and Mediterranean environments. For both crops, a strong positive linear regression between yield on a logarithmic basis and the Δ of grains (r2 = 0.72, 506 d.f. for durum wheat and r2 = 0.50, 316 d.f. for barley) was observed; the slope of the relationship was significantly higher for durum wheat than for barley. Initial estimates of yield were subsequently corrected from bibliographical data to take into consideration the two major differences between ancient and modern crops unaccounted for by the Δ of ancient samples: atmospheric CO2 levels and the harvest index ratio. As a case study, this method was used to obtain estimates of ancient yields of durum wheat and barley in two areas of the Western Mediterranean Basin (NE and SE Iberian Peninsula) using Δ data of grain samples from a number of archaeological sites. These sites dated from the beginning of agriculture in these areas (Neolithic Age, ca 7500 years before present (BP)) to the Middle Ages (ca 800 years BP). Our results show the absence of a marked trend in the yields of both durum wheat and barley, which seem to have remained relatively high from the Neolithic to the Middle Ages. The average values for the whole period (mean ± SD) were 1.61 ± 0.49 and 1.08 ± 0.25 Mg ha–1 for durum wheat and barley, respectively in the NE Iberian Peninsula, and 1.18 ± 0.48 and 0.97 ± 0.30 Mg ha–1, respectively, in SE Iberian Peninsula. These yield estimates are within the range indicated by the limited data (mostly from contemporary written sources) available for the Mediterranean Basin, and suggest relatively good growing conditions throughout the period studied, particularly in the NE Iberian Peninsula.

Palaeoenvironmental record of the Cal Maurici wetland sediment archive in Barcelona (NE Iberian Peninsula) between c. 6000 and 4000 cal. yr BP

The Holocene ◽  
2016 ◽  
Vol 26 (7) ◽  
pp. 1020-1039 ◽  
Author(s):  
Joan Daura ◽  
Montserrat Sanz ◽  
Jordi Ramos ◽  
Santiago Riera ◽  
Yannick Miras ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Wetland Sediment ◽  
Ne Iberian Peninsula

scholarly journals Historical, hydraulic, hydrological and meteorological reconstruction of 1874 Santa Tecla flash floods in Catalonia (NE Iberian Peninsula)

2015 ◽  
Vol 524 ◽  
pp. 279-295 ◽  
Author(s):  
Josep Lluís Ruiz-Bellet ◽  
Josep Carles Balasch ◽  
Jordi Tuset ◽  
Mariano Barriendos ◽  
Jordi Mazon ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Flash Floods ◽  
Ne Iberian Peninsula
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