La Legenda aurea com a font del teatre hagiogràfic català de tècnica medieval: un tast comparatiu

En aquest treball ens proposem estudiar la influència de la Legenda aurea de Jacobus de Voragine en el teatre hagiogràfic català de tècnica medieval, en concret en tres de les consuetes del ms. 1139 de la BNC: la de sant Jordi, dedicada a l’episodi de la donzella i el drac; la de la conversió de sant Cristòfol i la de sant Mateu. Comptem amb algunes aproximacions anteriors, com és el cas de les consideracions que féu Josep Romeu en la seua edició de les peces hagiogràfiques d’aquest manuscrit (1957). En aquest sentit, aprofitem les seues indicacions com a punt de partida per a oferir una anàlisi més detallada de la manera en què els drames hagiogràfics adapten algunes de les vides contingudes en l’obra de Voragine. Per no allargar-nos excessivament, ens centrem en aquestes tres consuetes, ja que poden ser prou representatives dels diferents tipus d’adaptació teatral de la Legenda aurea.

Imaging Land Subsidence Induced by Groundwater Extraction in Beijing (China) Using Satellite Radar Interferometry

Beijing is one of the most water-stressed cities in the world. Due to over-exploitation of groundwater, the Beijing region has been suffering from land subsidence since 1935. In this study, the Small Baseline InSAR technique has been employed to process Envisat ASAR images acquired between 2003 and 2010 and TerraSAR-X stripmap images collected from 2010 to 2011 to investigate land subsidence in the Beijing region. The maximum subsidence is seen in the eastern part of Beijing with a rate greater than 100 mm/year. Comparisons between InSAR and GPS derived subsidence rates show an RMS difference of 2.94 mm/year with a mean of 2.41 ± 1.84 mm/year. In addition, a high correlation was observed between InSAR subsidence rate maps derived from two different datasets (i.e., Envisat and TerraSAR-X). These demonstrate once again that InSAR is a powerful tool for monitoring land subsidence. InSAR derived subsidence rate maps have allowed for a comprehensive spatio-temporal analysis to identify the main triggering factors of land subsidence. Some interesting relationships in terms of land subsidence were found with groundwater level, active faults, accumulated soft soil thickness and different aquifer types. Furthermore, a relationship with the distances to pumping wells was also recognized in this work.