Characterization of crop rotations in irrigation areas of the Ebro Valley from temporal series of Landsat TM images

2004 ◽  
Author(s):  
Jose A. Martinez-Casasnovas ◽  
Almudena Martin-Montero
Keyword(s):  
Landsat Tm ◽  
Crop Rotations ◽  
Temporal Series ◽  
Ebro Valley

Characterization of haze pollution in Zibo, China: Temporal series, secondary species formation, and PMx distribution

Chemosphere ◽  
2021 ◽  
pp. 131807
Author(s):  
Hui Li ◽  
Yongliang Ma ◽  
Fengkui Duan ◽  
Tao Huang ◽  
Takashi Kimoto ◽  
...  
Keyword(s):  
Temporal Series ◽  
Secondary Species ◽  
Species Formation ◽  
Haze Pollution

scholarly journals Inside the hydro-physics processes at the plunge point location: an analysis by satellite and in situ data

2011 ◽  
Vol 8 (1) ◽  
pp. 1193-1223
Author(s):  
A. T. Assireu ◽  
E. Alcântara ◽  
E. M. L. M. Novo ◽  
F. Roland ◽  
F. S. Pacheco ◽  
...  
Keyword(s):  
Transition Zone ◽  
Landsat Tm ◽  
Density Currents ◽  
Wet Season ◽  
Satellite Measurements ◽  
Reservoir Water ◽  
In Situ Data ◽  
River Reservoir

Abstract. The plunge point locates the main point of mixing between river and the epilimnion reservoir water. The plunge point monitoring is essential to understand how it will be the behavior of density currents and its implications for reservoir. The applicability of satellite imagery products from different sensors (Landsat TM band 6 thermal signatures and visible channel) for characterization of the river-reservoir transition zone is presented in this study. We demonstrate the feasibility of the Landsat TM band imagery to discern the subsurface river plumes and the plunge point. The spatial variability of the plunge point evident in the hydrologic data illustrates the advantages of synoptic satellite measurements over in situ point measurements alone to detect the river-reservoir transition zone. It is indicated that the river flowing as underflow contributes to the thermal stability of the water column during wet season (summer-autumn). During the dry season, when the river-reservoir water temperature differences vanish and the river circulation is characterized by interflow-overflow, the river water inserts into the reservoir upper layers, affecting water quality. The results indicate good agreement between hydrologic and satellite data and that the jointly use of thermal and visible channel, operational monitoring of plunge point is feasible. The deduced information about the density current from this product could potentially be assimilated for numerical modeling and hence be of significant interest for environmental and climatological research.

Unsupervised Spectral Characterization of Shallow Lagoon Waters by the Use of Landsat TM and ETM+ Data

2005 ◽  
Vol 71 (11) ◽  
pp. 1265-1274 ◽  
Author(s):  
Fabio Maselli ◽  
Luca Massi ◽  
Chiara Melillo ◽  
Mario Innamorati
Keyword(s):  
Landsat Tm ◽  
Spectral Characterization ◽  
Shallow Lagoon

scholarly journals Characterization of Rhizoctonia solani Associated with Black Scurf in Cyprus

Plant Disease ◽  
2016 ◽  
Vol 100 (8) ◽  
pp. 1591-1598
Author(s):  
Loukas Kanetis ◽  
Dimitris Tsimouris ◽  
Michalakis Christoforou
Keyword(s):  
Rhizoctonia Solani ◽  
Internal Transcribed Spacer ◽  
Black Scurf ◽  
Crop Rotations ◽  
Potato Tubers ◽  
Biological Aspects ◽  
Its1 And Its2 ◽  
Comprehensive Study

During 2011, 96 sclerotial isolates of Rhizoctonia solani were collected from potato tubers from all main potato-cultivating regions of Cyprus. All isolates were found to be multinucleate. Characterization of anastomosis groups (AG) based on hyphal anastomosis reactions showed that 91 isolates belonged to AG3 and 5 to AG4. Sequence analysis of the internal transcribed spacer (ITS) regions (ITS1 and ITS2) of ribosomal DNA (rDNA) of 68 isolates confirmed the prevalence of AG3. In addition, phylogenetic analysis found that AG3 isolates were of the potato type, distinctly separated from the AG3 tobacco type, while AG4 isolates were separated into two different subgroups (HGI and HGII). Temperature studies showed that isolates belonging to both AG4 subgroups had significantly higher optimum growth temperatures compared with AG3. In vitro sensitivities to the fungicide pencycuron, in terms of concentrations where 50% growth inhibition was observed, ranged from 0.012 to 0.222 μg/ml. Pathogenicity and aggressiveness of the isolates was determined on ‘Annabelle’ potato sprouts and seedlings of a number of selected hosts, based on crop rotations followed in Cyprus. The majority of the isolates were pathogenic to potato sprouts, with disease severity (DS) values ranging from 0 to 88%. Mean DS values were statistically different among AG and subgroups, with AG4-HGI (69.25%) and AG4-HGII (3.12%) being the most and least aggressive, respectively. However, AG4-HGII isolates were the most aggressive in all rotational hosts tested, while AG3 isolates were the least aggressive. More specifically, the highest DS levels by AG4-HGI were recorded to barley, by AG4-HGII to lettuce and melon, and by AG3 isolates to vetch. This is the first comprehensive study to elucidate the AG composition, pathogenicity and other biological aspects of R. solani isolates associated with potato black scurf in Cyprus.

scholarly journals Los mozárabes frente al rito romano: balance historiográfico de una relación polémica = Mozarabs in the face of the Roman Rite: A State of the Question on a Contraversial Relationship

2018 ◽  
pp. 619
Author(s):  
Juan Pablo Rubio Sadia
Keyword(s):  
Twentieth Century ◽  
Review Of The Literature ◽  
Interesting Phenomenon ◽  
Future Studies ◽  
Ebro Valley ◽  
Research Areas ◽  
The Face ◽  
Siglo Xx

La respuesta de las comunidades mozárabes ante la obligatoriedad de adoptar el rito romano durante los siglos XI y XII constituye un interesante fenómeno que ayuda a esclarecer hasta qué punto la antigua liturgia hispano-visigótica formaba parte de la esencia identitaria de esos cristianos arabizados y de qué modo miraron al rito ultrapirenaico. Este trabajo quiere ofrecer una revisión de la literatura generada en torno al tema desde mediados del siglo XX, diferenciando tres escenarios: Portugal (Coímbra y Lisboa), Aragón (Zaragoza y el valle del Ebro) y Toledo. El objetivo que se persigue es el de exponer y evaluar los modelos interpretativos, la recurrencia temática y la caracterización de personajes y grupos. Asimismo, se indican las líneas de investigación abiertas y se sugieren nuevas vías de estudio.The response of the Mozarabic communities with respect to the obligation to adopt the Roman rite during the eleventh and twelfth centuries is an interesting phenomenon which sheds light on the extent to which the ancient Hispano-Visigothic liturgy was part of the essence of the Arabized Christian’s identity and in what way did they conceive the foreign rite. This study proposes a review of the literature produced on this topic from the mid-twentieth century in three different areas: Portugal (Coimbra and Lisbon), Aragon (Zaragoza and the Ebro Valley) and Toledo. Our objective is to present and evaluate the interpretive models, the recurring themes and the characterization of figures and groups. Furthermore, we will enumerate current research areas and propose new themes for future studies.

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