La importación del agua y el equilibrio hídrico regional

Fil: González, Nilda. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

Los ambientes hidrogeológicos de la Provincia de Buenos Aires

Fil: González, Nilda. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

Estudio de la relación amenaza, vulnerabilidad y riesgo hídrico en cuencas urbanas marginales : Estudio de Caso: La Cava de Villa Itatí. Quilmes, Provincia de Buenos Aires. Argentina

Fil: Angheben, Enrique. Laboratorio de Hidrología. Departamento de Hidraúlica. Facultad de Ingeniería. Universidad Nacional de La Plata; ArgentinaFil: Sarandón, Ramiro. Laboratorio de Ecometría. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: González, Nilda. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

Estudio ecohidrológico de la cuenca urbana de la Cava de Villa Itatí, Quilmes, provincia de Buenos Aires

Fil: Angheben, Enrique. Laboratorio de Hidrología. Departamento de Hidráulica. Facultad de Ingeniería. Universidad Nacional de La Plata; ArgentinaFil: Sarandón, Ramiro. Laboratorio de Ecometría. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: González, Nilda. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Romanazzi, Pablo. Laboratorio de Hidrología. Departamento de Hidráulica. Facultad de Ingeniería. Universidad Nacional de La Plata; Argentin

A New Soil Moisture Agricultural Drought Index (SMADI) Integrating MODIS and SMOS Products: A Case of Study over the Iberian Peninsula

25 pages, 9 figures, 4 tablesA new index for agricultural drought monitoring is presented based on the integration of different soil/vegetation remote sensing observations. The synergistic fusion of the surface soil moisture (SSM) from the Soil Moisture and Ocean Salinity (SMOS) mission, with the Moderate Resolution Imaging Spectroradiometer (MODIS) derived land surface temperature (LST), and water/vegetation indices for agricultural drought monitoring was tested. The rationale of the approach is based on the inverse relationship between LST, vegetation condition and soil moisture content. Thus, the proposed Soil Moisture Agricultural Drought Index (SMADI) combines the soil and temperature conditions while including the lagged response of vegetation. SMADI was retrieved every eight days at 500 m spatial resolution for the whole Iberian Peninsula (IP) from 2010 to 2014, and a time lag of eight days was used to account for the plant response to the varying soil/climatic conditions. The results of SMADI compared well with other agricultural indices in a semiarid area in the Duero basin, in Spain, and also with a climatic index in areas of the Iberian Peninsula under contrasted climatic conditions. Based on a standard classification of drought severity, the proposed index allowed for a coherent description of the drought conditions of the IP during the study periodThis study was supported by the Spanish Ministry of Economy and Competitiveness, MINECO (Projects AYA2012-39356-C05 and ESP2015-67549-C3-3) and the European Regional Development Fund, FEDER. Partial funding was also received from the BBVA FoundationPeer Reviewe

Evidencias hidrodinámicas de explotación intensiva en cuencas del Noreste de la provincia de Buenos Aires

Fil: Trovatto, María Marta. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Alvarez, María del Pilar. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: González, Nilda. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Hernández, Mario Alberto. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

Estudio ecohidrológico de una cuenca urbana marginal en el conurbano bonaerense

Con el objetivo de realizar un estudio ecohidrológico integral de una cuenca urbana marginal no planificada (La Cava de Villa Itatí, Quilmes, provincia de Buenos Aires), se elaboró un balance hídrico bajo régimen no permanente (cuantificando el volumen de agua, sus orígenes y los porcentajes de ingresos - egresos), y se caracterizó físicoquímica y bacteriológicamente su calidad. Sobre esta base, se realizó un análisis conceptual de la amenaza, la vulnerabilidad y el riesgo hídrico (A-V-R) de la población del área, planteándose recomendaciones para la planificación urbana. El cuerpo de agua superficial y el agua freática se encuentran altamente contaminados por la presencia de organismos patógenos, con posibilidades ciertas de entrar en contacto con los habitantes de La Cava. Por ello, y ante la carencia de agua segura y saneamiento, el riesgo a contraer enfermedades de vector hídrico es muy elevado. El presente estado de vulnerabilidad social de La Cava de Villa Itatí se ha ido construyendo a lo largo del tiempo a partir de las decisiones tomadas por los actores de la misma sociedad. El riesgo resultante de la combinación de las amenazas analizadas, con los tipos de vulnerabilidad económica, política y cultural que involucran a esos actores sociales, deriva de la debilidad de una gestión del territorio en cuanto a su planificación y ordenamiento. A partir de los resultados del balance hídrico y del análisis A-V-R surge la necesidad de intervenir en La Cava de Villa Itatí de modo de detener el asentamiento poblacional que se ha ido produciendo en los últimos años, sobre todo en la zona baja, aquella que posee un riesgo mayor de inundación y se encuentra en contacto con el agua superficial.With the aim to carry on an integral ecohydrological study of unplanned urban marginal basin (La Cava de Villa Itatí, Quilmes, Buenos Aires), a water balance was prepared under non-steady state (quantifying the volume of water, its origins and percentages income and expenses), also was characterized physicochemical and bacteriological quality. On this basis, a conceptual analysis of the threat, vulnerability and water risk (A-V-R) for population of that area was perform, considering recommendations for urban planning. Surface water and ground water are highly contaminated by pathogenic organisms, with probabilities to being in contact with the residents of La Cava. Consequently, and due to the lack of safe water and sanitation, the risk of disease from water is very high. This condition of social vulnerability of La Cava de Villa Itatí has been built up over a long time from decisions made by actors of the same society. This risk condition is the result of a combination of the analyzed threats, combined with economic, political and cultural vulnerability of these social actors, being the result of the weakness of land planning and management. The results of water balance and the AVR analysis point out the need to intervene in Villa La Cava Itatí to stop the population settlement that has taken place in recent years, especially in the lower area, that show a higher flooding risk, putting this population in contact with contaminated surface water.Facultad de Ingenierí

Assessment of Root Zone Soil Moisture Estimations from SMAP, SMOS and MODIS Observations

[EN]In this study, six satellite-based root zone soil moisture (RZSM) estimates from March 2015 to December 2016 were evaluated both temporally and spatially. The first two were the Soil Moisture Active Passive (SMAP) and the Soil Moisture and Ocean Salinity (SMOS) L4 RZSM products. The other four were obtained through the Soil Water Index (SWI) approach, which embedded surface soil moisture (SSM). The SMOS-Barcelona Expert Center (BEC) L4 SSM product and the apparent thermal inertia (ATI)-derived SSM from the Moderate Resolution Imaging Spectroradiometer (MODIS) data were used as SSM datasets. In the temporal analysis, the RZSM estimates were compared to in situ RZSM from 14 stations of the Soil Moisture Measurements Station Network of the University of Salamanca (REMEDHUS). Regarding the spatial assessment, the resulting RZSM maps of the Iberian Peninsula were compared between them. All RZSM values followed the temporal evolution of the ground-based measurements well, although SMOS and MODIS showed underestimation while SMAP displayed overestimation. The good results obtained from MODIS ATI are notable, notwithstanding they were not estimated through microwave radiometry. A very high agreement was found in terms of spatial patterns for the whole Iberian Peninsula except for the extreme north area, which is dominated by high mountains and dense forests

Estimación de la recarga en zonas áridas según distintos métodos : área medanosa del Sur de Península Valdés

Fil: Alvarez, María del Pilar. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Hernández, Mario Alberto. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Trovatto, María Marta. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: González, Nilda. Cátedra de Hidrogeología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

Assessment of SMADI and SWDI agricultural drought indices using remotely sensed root zone soil moisture

[EN]The increasing frequency of drought events has expanded the research interest in drought monitoring. In this regard, remote sensing is a useful tool to globally mapping the agricultural drought. While this type of drought is directly linked to the availability of root zone soil moisture (RZSM) for plants growth, current satellite soil moisture observations only characterize the water content of the surface soil layer (0–5 cm). In this study, two soil moisture-based agricultural drought indices were obtained at a weekly rate from June 2010 to December 2016, using RZSM estimations at 1 km from the Soil Moisture and Ocean Salinity (SMOS) satellite, instead of surface soil moisture (SSM). The RZSM was estimated by applying the Soil Water Index (SWI) model to the SMOS SSM. The Soil Moisture Agricultural Drought Index (SMADI) and the Soil Water Deficit Index (SWDI) were assessed over the Castilla y León region (Spain) at 1 km spatial resolution. They were compared with the Atmospheric Water Deficit (AWD) and the Crop Moisture Index (CMI), both computed at different weather stations distributed over the study area. The level of agreement was analyzed through statistical correlation. Results showed that the use of RZSM does not influence the characterization of drought, both for SMADI and SWDI