Global Characteristics of Stream Flow Seasonality and Variability

  title={Global Characteristics of Stream Flow Seasonality and Variability},
  author={Michael D. Dettinger and Henry F. Diaz},
  journal={Journal of Hydrometeorology},
Monthly stream flow series from 1345 sites around the world are used to characterize geographic differences in the seasonality and year-to-year variability of stream flow. Stream flow seasonality varies regionally, depending on the timing of maximum precipitation, evapotranspiration, and contributions from snow and ice. Lags between peaks of precipitation and stream flow vary smoothly from long delays in high-latitude and mountainous regions to short delays in the warmest sectors. Stream flow… 

Varying spatial patterns of trend and seasonality in Eurasian runoff time series

Abstract. Atmospheric circulation indices can be used to explain the variability of runoff on a continental scale. Beside well-known regional anomalies of precipitation and runoff that correlate with

Accounting for Temporal Variability of Streamflow in Estimates of Travel Time

Retention, processing, and transport of solutes and particulates in stream corridors are influenced by the travel time of streamflow through stream channels, which varies dynamically with discharge.

Seasonality and Drivers of Low Flows Across Europe and the United States

Low river flows can negatively impact society and the riverine environment. Thus, it is useful to predict their seasonal timing and reveal their main drivers. The typical timing of low flows varies

Hydrology, sediment transport dynamics and geomorphology of a variable flow river: the Mfolozi River, South Africa

The co-efficient of variation for inter-annual streamflow of the Mfolozi River is extremely high at 79%. An analysis of flow frequency indicated that streamflow is skewed towards low-flow values,

Streamflow variability and the role of snowmelt in a marginal snow environment

ABSTRACT Snowmelt in alpine regions supports hydroelectric power generation, water supply, and agricultural production. These regions are warming, and the impact on streamflow of changes in

Trends in Global Flood and Streamflow Timing Based on Local Water Year

Analysis of flood and streamflow timing has recently gained prominence as a tool for attribution of climatic changes to flooding. Such studies generally apply circular statistics to the day of

Regional sensitivities of mean and peak river discharge to climate variability in Europe

[1] Variability of atmospheric circulation is thought to be the most important factor causing annual and decadal variability of fresh water fluxes from the continents. Previous studies, however, have

Streamflow trends and hydrological response to climatic change in Tarim headwater basin

This paper has studied the change of streamflow and the impact of climatic variability conditions on regional hydrological cycle in the headwater of the Tarim River Basin. This study investigates



ENSO and Hydrologic Extremes in the Western United States

Frequency distributions of daily precipitation in winter and daily stream flow from late winter to early summer, at several hundred sites in the western United States, exhibit strong and systematic

Decadal Variability of Precipitation over Western North America

Abstract Decadal (>7- yr period) variations of precipitation over western North America account for 20%–50% of the variance of annual precipitation. Spatially, the decadal variability is broken into

Seasonal Response of Mean Monthly Streamflow to El Niño/Southern Oscillation in North Central Florida

The southeastern United States, including Florida, has been identified as a region of homogeneous response to the El Nino/Southern Oscillation (ENSO) climatic anomaly, in which mean monthly

Precipitation monitoring for climate change detection

SummaryAn important measure of the reliability of simulated precipitation fields by general circulation models will be its ability to reproduce the more important features of observed precipitation,

Large-Scale Patterns and Long-Term Trends of Circulation Variability Associated with Sahel Rainfall Anomalies

Trends in the large-scale tropical circulation during 1948-1883 are studied in relation to the persistent drought in Subsaharan Africa, based on ship observations over the tropical oceans and surface

Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation

An evaluation of the atmospheric moisture budget reveals coherent large-scale changes since 1980 that are linked to recent dry conditions over southern Europe and the Mediterranean, whereas northern Europe and parts of Scandinavia have generally experienced wetter than normal conditions.

Regional variations in the annual cycle of rainfall in Ireland as revealed by principal component analysis

Principal component analysis is applied to long-term average monthly rainfall amounts expressed as percentages of the annual average in order to study variations in the annual cycle of average

North–South Precipitation Patterns in Western North America on Interannual-to-Decadal Timescales

The overall amount of precipitation deposited along the West Coast and western cordillera of North America from 258 to 558N varies from year to year, and superimposed on this domain-average

Relationships between Precipitation Anomalies in Uruguay and Southern Brazil and Sea Surface Temperature in the Pacific and Atlantic Oceans

Abstract This study focuses on precipitation in Uruguay and the Brazilian state of Rio Grande do Sul, which extend along the Atlantic coast of southern South America. The present paper has two

Surface Climate and Streamflow Variability in the Western United States and Their Relationship to Large‐Scale Circulation Indices

A statistical analysis was undertaken to determine the nature and magnitude of the relationship of precipitation, temperature and streamflow in the western United States to large-scale atmospheric