The Impact of Climate Change on Rainfall Frequency in Taiwan

Huang, Wen-Cheng; Chiang, Y. C.; Wu, R.; Lee, Jyun-Long; Lin, Shu-Hua

doi:10.3319/tao.2012.05.03.04(wmh)

Cited by 19 publications

(16 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ET o is regarded as a standard to be followed; therefore, the estimated PE value must be corrected. The quadrant transformation method (Huang et al 2012) was applied in this study for bias correction. Figure 4 shows the quadrant transformation method concept, in which the curve indicates the percentage of time that evapotranspiration is equaled or exceeded during the period of study.…”

Section: Bias Correctionmentioning

confidence: 99%

“…Some studies indicated that Taiwan's surface temperature will rise in the future (Lin et al 2009;Hsu et al 2011). The temporal precipitation distribution may become more uneven, and rainless days might occur more frequently (Huang et al 2012(Huang et al , 2014a. The changes in hydrologic projections indicate that water resources management in Taiwan could become a challenging task.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Climate change impact assessment on Zhoshui River water supply in Taiwan

Lee¹,

Huang²

2017

Terr. Atmos. Ocean. Sci.

Self Cite

View full text Add to dashboard Cite

This study evaluates the impact of climate change on water resources. An integrated procedure is proposed for assessing the water resources system response to climate change on the basin scale. The Zhoshui River basin in Central Taiwan was selected for the impact assessment. Five downscaled general circulation models based on the A1B scenario for 2046-2065 were adopted to assess the climate change impact, including (1) the irrigation water requirement downstream of the basin, (2) the river flow upstream of the basin, and (3) the water resources utilization related to supply and demand in the basin. Rising temperatures will cause the irrigation water requirement to increase by 10%. Precipitation in the basin will substantially decrease and likely cause a 20% decrease in river flow. Thus, irrigation water shortages may become more severe in the future. As an adaptation, the Hushan Reservoir, which will begin operation in mid-2016, can assist in offsetting domestic and industrial demand. To maintain the irrigation deficit at the present level (2001-2010) in the future, conveyance losses should reduce to 30% and the farming area used in the second paddy growth season should be decreased by 10%.

show abstract

Section: Bias Correctionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Climate change impact assessment on Zhoshui River water supply in Taiwan

Lee¹,

Huang²

2017

Terr. Atmos. Ocean. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This tough situation makes people often struggle to manage the available water during most of the time in a year [13,14]. In fact, researches showed that Taiwan is facing increased risk of droughts in the 21st century [15] and the regions currently threatened by droughts will be at greater risk in the future [16].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Severe Droughts in Taiwan and its Related Atmospheric and Oceanic Environments

Hung

Shih

2019

Atmosphere

View full text Add to dashboard Cite

Drought is one of the important issues in climate studies. A drought index, Taiwan Meteorological Drought index (TMD index), was previously proposed and is applied here to identify historical severe droughts in Taiwan in order to clarify the corresponding large-scale backgrounds as a potential alert to the society in future. Through the TMD index, several historical severe drought cases in Taiwan are detected and characterized by significant seasonal variability in the annual cycle. Composites for large-scale atmospheric and oceanic environments over different periods within the dry season are conducted. From October to December, the colder sea surface temperature (SST) pattern of Pacific Meridional Mode (PMM) and the PMM-induced local anomalous anticyclones over the South China Sea are both in charge of the extremely dry conditions in Taiwan. From January to February, cold SST in the South China Sea and its adjacent oceans dominates local atmospheric conditions above these regions and creates an unfavorable environment for convection systems. From March to May, a massive anomalous anticyclonic circulation centering beside Alaska and extending its properties to East Asia and Taiwan generates a descending environment and in turn suppresses convection systems to develop. Therefore, the extremely dry conditions under this system are expected.

show abstract

“…In addition, the evapotranspiration of PE may need correction. A conversion method, the quadrant transformation method [5,24], is applied here for bias correction. The concept of quadrant transformation method is shown in Figure 4.…”

Section: Bias Correctionmentioning

confidence: 99%

“…With the models, an assessment of the future climate would be possible [2,3], and the problem of uncertainty may be mitigated by considering multiple models [4,5]. According to the results of the cited researches, the rainfall distribution would be different and temperature would rise under climate change.…”

Section: Introductionmentioning

confidence: 99%

Impact of Climate Change on the Irrigation Water Requirement in Northern Taiwan

Lee¹,

Huang²

2014

Water

Self Cite

View full text Add to dashboard Cite

Abstract:The requirement for irrigation water would be affected by the variation of meteorological effects under the conditions of climate change, and irrigation water will always be the major portion of the water consumption in Taiwan. This study tries to assess the impact on irrigation water by climate change in Taoyuan in northern Taiwan. Projected rainfall and temperature during 2046-2065 are adopted from five downscaled general circulation models. The future evapotranspiration is derived from the Hamon method and corrected with the quadrant transformation method. Based on the projections and a water balance model in paddy fields, the future crop water requirement, effective rainfall and the demand for water for irrigation can be calculated. A comparison between the present (2004-2011) and the future (2046-2065) clearly shows that climate change would lead both rainfall and the temperature to rise; this would cause effective rainfall and crop water requirement to increase during cropping seasons in the future. Overall, growing effective rainfall neutralizes increasing crop water requirement, the difference of average irrigation water requirement between the present and future is insignificant (<2.5%). However, based on a five year return period, the future irrigation requirement is 7.1% more than the present in the first cropping season, but it is insignificantly less (2.1%) than the present in the second cropping season. OPEN ACCESSWater 2014, 6 3340

show abstract

The Impact of Climate Change on Rainfall Frequency in Taiwan

Cited by 19 publications

References 9 publications

Climate change impact assessment on Zhoshui River water supply in Taiwan

Climate change impact assessment on Zhoshui River water supply in Taiwan

Analysis of Severe Droughts in Taiwan and its Related Atmospheric and Oceanic Environments

Impact of Climate Change on the Irrigation Water Requirement in Northern Taiwan

Contact Info

Product

Resources

About