scholarly journals Monitoring Spatial and Temporal Variability of Air Quality Using Satellite Observation Data: a Case Study of MODIS-Observed Aerosols in Southern Ontario, Canada

Air Quality ◽  
10.5772/9753 ◽  
2010 ◽  
Author(s):  
DongMei Chen ◽  
Jie Ti
Keyword(s):  
Air Quality ◽  
Temporal Variability ◽  
Satellite Observation ◽  
Spatial And Temporal Variability ◽  
Observation Data ◽  
Southern Ontario

scholarly journals Spatial and temporal variations of winter discharge under climate change: Case study of rivers in European Russia

2015 ◽  
Vol 368 ◽  
pp. 245-250 ◽  
Author(s):  
E. A. Telegina
Keyword(s):  
Temporal Variability ◽  
Climate Changes ◽  
Temporal Variations ◽  
European Russia ◽  
Spatial And Temporal Variability ◽  
Water Runoff ◽  
Underground Waters ◽  
Winter Runoff ◽  
First Time

Abstract. An important problem in hydrology is the re-evaluation of the current resources of surface and underground waters in the context of ongoing climate changes. The main feature of the present-day changes in water regime in the major portion of European Russia (ER) is the substantial increase in low-water runoff, especially in winter. In this context, some features of the spatial–temporal variations of runoff values during the winter low-water period are considered. Calculations showed that the winter runoff increased at more than 95% of hydrological gauges. Changes in the minimum and average values of runoff during winter low-water period and other characteristics are evaluated against the background of climate changes in the recent decades. The spatial and temporal variability of winter runoff in European Russia is evaluated for the first time.

The role of storm movement in controlling flash flood response: an analysis of the 28 September 2012 extreme event in Murcia, southeastern Spain

2021 ◽  
Author(s):  
A. Amengual ◽  
M. Borga ◽  
G. Ravazzani ◽  
S. Crema
Keyword(s):  
Temporal Variability ◽  
Flash Flood ◽  
Spatial And Temporal Variability ◽  
Hydrological Response ◽  
Catchment Scale ◽  
Flash Flooding ◽  
Southeastern Spain ◽  
Flood Response

AbstractFlash flooding is strongly modulated by the spatial and temporal variability in heavy precipitation. Storm motion prompts a continuous change of rainfall space-time variability that interacts with the drainage river system, thus influencing the flood response. The impact of storm motion on hydrological response is assessed for the 28 September 2012 flash flood over the semi-arid and medium-sized Guadalentín catchment in Murcia, southeastern Spain. The influence of storm kinematics on flood response is examined through the concept of ‘catchment-scale storm velocity’. This variable quantifies the interaction between the storm system motion and the river drainage network, assessing its influence on the hydrograph peak. By comparing two hydrological simulations forced by rainfall scenarios of distinct spatial and temporal variability, the role of storm system movement on the flood response is effectively isolated. This case study is the first to: (i) show through the catchment-scale storm velocity how storm motion may strongly affect flood peak and timing; and (ii) assess the influence of storm kinematics on hydrological response at different basin scales. In the end, this extreme flash flooding provides a valuable case study of how the interaction between storm motion and drainage properties modulate hydrological response.

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