The difference during this period is due to several meteorological differences, including greater than normal solar radiation levels 8. Not only have soils generally not been able to supply sufficient water to meet crop needs due to the extended dryness, but rates of PET based on atmospheric conditions have been significantly greater than normal this year, which has exacerbated the effects of the drought.
This article was published by Michigan State University Extension. What is evapotranspiration and why it matters. Figure 1.
Observed potential evapotranspiration PET from May 1 to July 24, red line , versus the long-term average , black line at East Lansing, Mich. Data courtesy MSU Enviro-weather. Did you find this article useful? Please tell us why Submit. Haul manure? Learn More. Understanding the drought through the Evaporative Stress Index.
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Pedro, R. Basin scale rainfall-evapotranspiration dynamics in a tropical semiarid environment during dry and wet years. Earth Obs. Download references. You can also search for this author in PubMed Google Scholar. Conceptualization, H. Correspondence to Lin Wang. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
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Reprints and Permissions. Zhang, H. Analysis of the variation in potential evapotranspiration and surface wet conditions in the Hancang River Basin, China. Sci Rep 11, Download citation. Received : 22 December Accepted : 06 April Published : 21 April Anyone you share the following link with will be able to read this content:.
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Download PDF. Subjects Environmental impact Hydrology. Abstract Evapotranspiration is an important component of the water cycle, and possible trends in evapotranspiration can, among others, influence water management and agricultural production.
Introduction Since worldwide mean global surface temperatures have increased significantly in recent decades 1 , 2 , changes in other components of the hydrological cycle and its processes can also be expected 3. Data and methods Study site and data As shown in Fig. Figure 1. Full size image. Table 1 Weather station locations and climate type. Full size table. Figure 2. Figure 3. Table 2 Principal component analysis of meteorological factors in Hancang river basin.
Table 3 Principal component analysis load matrix of meteorological elements in Hancang river basin. Table 4 Correlation analysis between meteorological factors and ET p. Figure 4. Monthly change trend of precipitation anomaly in Hancang River Basin. Figure 5. Monthly relative humidity index anomaly in Hancang River Basin. Conclusions Based on the presented results, the following conclusions can be made: The annual ET p in the basin is Data availability Transparency. References 1.
Wind will increase PET values, because evapotranspiration rates are higher. Example: Add up the PET values for the past seven days. If you water your yard once a week, this is the amount of water you need to put out when irrigating. If it has rained during those seven days, subtract the total amount of rainfall from the PET total for the same time period.
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