Spatiotemporal Variation in the Continental US Streamflow in Association with Large-Scale Climate Signals Across Multiple Spectral Bands

Tamaddun, Kazi Ali; Kalra, Ajay; Ahmad, Sajjad

doi:10.1007/s11269-019-02217-8

Cited by 36 publications

(15 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For this scale, the 10° (45°) difference indicated that the influence of PRP on streamflows was recorded with 1-3 (3-12) month lags, whereas 0° indicated that both time series were simultaneously related. On the 10-14 (8)(9)(10)(11)(12)(13)(14) year decadal scale, the indices presented −45° (0° and 10°) phase difference, which implies that the influence of PRP on streamflows of ARB (PRB) was reflected within a 15-21 (3-5) month time interval. The CJ index and PC1 for ARB showed coherences on the 2-7-year interannual scale from 1988 to 2013 (Figure 10b), with phase differences from 0 to −45°, meaning a delay of approximately 3-11 months.…”

Section: Wavelet Coherence and Phase Differencementioning

confidence: 98%

“…The coherence between the PC1 for ARB (PRB) and PRP was significant on the 2-8-year time scale from 1985 to 2011 with a phase difference from 0 • to 10 • (0 • to 45 • ) (Figure 10a,c). For this scale, the 10 • (45 • ) difference indicated that the influence of PRP on streamflows was recorded with 1-3 (3)(4)(5)(6)(7)(8)(9)(10)(11)(12) month lags, whereas 0 • indicated that both time series were simultaneously related. On the 10-14 (8)(9)(10)(11)(12)(13)(14) year decadal scale, the indices presented −45 • (0 • and 10 • ) phase difference, which implies that the influence of PRP on streamflows of ARB (PRB) was reflected within a 15-21 (3-5) month time interval.…”

Section: Wavelet Coherence and Phase Differencementioning

confidence: 99%

See 1 more Smart Citation

Streamflow Variability in Colombian Pacific Basins and Their Teleconnections with Climate Indices

Canchala

Cerón

Francés

et al. 2020

Water

View full text Add to dashboard Cite

Oceanic-atmospheric phenomena of different time scales concurrently might affect the streamflow in several basins around the world. The Atrato River Basin (ARB) and Patía River Basin (PRB) of the Colombian Pacific region are examples of such basins. Nevertheless, the relations between the streamflows in the ARB and PRB and the oceanic-atmospheric factors have not been examined considering different temporal scales. Hence, this article studies the relations of the climate indices and the variability of the streamflows in the ARB and PRB at interannual and decadal timescales. To this, the streamflow variability modes were obtained from the principal component analysis (PCA); furthermore, their linear dependence with indices of the El Niño/Southern Oscillation (ENSO), precipitation (PRP), the Choco low-level jet (CJ), and other indices were quantified through (a) Pearson and Kendall’s tau correlations, and (b) wavelet transform. The PCA presented a single significant mode for each basin, with an explained variance of around 80%. The correlation analyses between the PC1s of the ARB and PRB, and the climate indices showed significant positive (negative) high correlations with PRP, CJ, and Southern Oscillation Index (SOI) (ENSO indices). The wavelet coherence analysis showed significant coherencies between ENSO and ARB: at interannual (2–7 years) and decadal scale (8–14), preferably with the sea surface temperature (SST) in the east and west Tropical Pacific Ocean (TPO). For PRB with the SST in the central and western regions of the TPO in the interannual (4–8 years) and decadal (8–14 years) scales, the decreases (increases) in streamflow precede the El Niño (La Niña) events. These results indicate multiscale relations between the basins’ streamflow and climate phenomena not documented in previous works, relevant to forecast the extreme flow events in the Colombian Pacific rivers and for planning and implementing strategies for the sustainable use of water resources in the basins studied.

show abstract

Section: Wavelet Coherence and Phase Differencementioning

confidence: 98%

Section: Wavelet Coherence and Phase Differencementioning

confidence: 99%

Streamflow Variability in Colombian Pacific Basins and Their Teleconnections with Climate Indices

Canchala

Cerón

Francés

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…GCMs have known uncertainties and statistical biases that limit their direct use for hydrological assessments especially at short time scales, such as daily to weekly [58][59][60]. To tackle the issue of statistical biases, several correction techniques have been developed to adjust modelled variables to observations [61].…”

Section: Introductionmentioning

confidence: 99%

Twenty-First Century Streamflow and Climate Change in Forest Catchments of the Central Appalachian Mountains Region, US

Gaertner

Fernández

Zégre

2020

Water

View full text Add to dashboard Cite

Forested catchments are critical sources of freshwater used by society, but anthropogenic climate change can alter the amount of precipitation partitioned into streamflow and evapotranspiration, threatening their role as reliable fresh water sources. One such region in the eastern US is the heavily forested central Appalachian Mountains region that provides fresh water to local and downstream metropolitan areas. Despite the hydrological importance of this region, the sensitivity of forested catchments to climate change and the implications for long-term water balance partitioning are largely unknown. We used long-term historic and future (2005-2099) ensemble climate and water balance data and a simple energy-water balance model to quantify streamflow sensitivity and project future streamflow changes for 29 forested catchments under two future Relative Concentration Pathways. We found that streamflow is expected to increase under the low-emission pathway and decrease under the high-emission pathway. Furthermore, despite the greater sensitivity of streamflow to precipitation, larger increases in atmospheric demand offset increases in precipitation-induced streamflow, resulting in moderate changes in long-term water availability in the future. Catchment-scale results are summarized across basins and the region to provide water managers and decision makers with information about climate change at scales relevant to decision making.

show abstract

“…The uncertainties and irregularities in the hydrological cycle create a gap in the net water availability by reducing the supply [8] and increasing the demand [9][10][11][12]. Furthermore, the hydrological process disruptions, as a consequence of climate change and variability, have resulted in severe streamflow fluctuation [13,14]. Change in land use and land cover, coupled with the population growth, has significantly challenged water management in urban watersheds [15].…”

Section: Introductionmentioning

confidence: 99%

Future Changes in Water Supply and Demand for Las Vegas Valley: A System Dynamic Approach based on CMIP3 and CMIP5 Climate Projections

et al. 2020

Self Cite

View full text Add to dashboard Cite

The study investigated the impact on water supply and demand as an effect of climate change and population growth in the Las Vegas Valley (LVV) as a part of the Thriving Earth Exchange Program. The analyses evaluated future supply and demand scenarios utilizing a system dynamics model based on the climate and hydrological projections from the Coupled Model Intercomparison Project phases 3 and 5 (CMIP3 and CMIP5, respectively) using the simulation period expanding from 1989 to 2049. The main source of water supply in LVV is the water storage in Lake Mead, which is directly related to Lake Mead elevation. In order to assess the future water demand, the elevation of Lake Mead was evaluated under several water availability scenarios. Fifty-nine out of the 97 (27 out of the 48) projections from CMIP5 (CMIP3) indicated that the future mean elevation of Lake Mead is likely to be lower than the historical mean. Demand forecasts showed that the Southern Nevada Water Authority’s conservation goal for 2035 can be significantly met under prevalent conservation practices. Findings from this study can be useful for water managers and resource planners to predict future water budget and to make effective decisions in advance to attain sustainable practices and conservation goals.

show abstract

Spatiotemporal Variation in the Continental US Streamflow in Association with Large-Scale Climate Signals Across Multiple Spectral Bands

Cited by 36 publications

References 51 publications

Streamflow Variability in Colombian Pacific Basins and Their Teleconnections with Climate Indices

Streamflow Variability in Colombian Pacific Basins and Their Teleconnections with Climate Indices

Twenty-First Century Streamflow and Climate Change in Forest Catchments of the Central Appalachian Mountains Region, US

Future Changes in Water Supply and Demand for Las Vegas Valley: A System Dynamic Approach based on CMIP3 and CMIP5 Climate Projections

Contact Info

Product

Resources

About