Simulating the Effects of Irrigation over the United States in a Land Surface Model Based on Satellite-Derived Agricultural Data

Özdoğan, Mutlu; Rodell, Matthew; Beaudoing, H. K.; Toll, D. L.

doi:10.1175/2009jhm1116.1

Cited by 285 publications

(379 citation statements)

References 45 publications

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“…Modeling studies have reported different magnitudes of irrigation cooling effects, depending on the irrigation schemes prescribed in their models (Qian et al 2013;Ozdogan et al 2010;Sacks et al 2008;Sorooshian et al 2011;Lo and Famiglietti 2013;Adegoke et al 2003;de Rosnay et al 2003;Haddeland et al 2006;Kanamaru and Kanamitsu 2008;B. Yang et al 2016).…”

Section: A Backgroundmentioning

confidence: 99%

“…Most of these studies were performed at the regional scale. For example, Ozdogan et al (2010) used the offline uncoupled Noah land surface model (LSM) to simulate the irrigation impact over the continental United States and showed that the energy fluxes and water budget over the irrigated area were significantly improved. At specific locations, inclusion of irrigation also greatly improved the simulated diurnal energy cycles when compared to AmeriFlux observations.…”

Section: A Backgroundmentioning

confidence: 99%

“…Qian et al (2013) used the regional Weather Research and Forecasting (WRF) Model to investigate impacts of irrigation over the southern Great Plains (SGP) region. They incorporated an irrigation scheme into the Noah LSM following Ozdogan et al (2010) and found that sensible heat flux decreases (latent heat flux increases) leading to surface cooling of 0.38-0.58C and increased surface air specific humidity of 0.3-0.6 g kg…”

Section: A Backgroundmentioning

confidence: 99%

See 2 more Smart Citations

Impact of Irrigation over the California Central Valley on Regional Climate

Yang

Domínguez²,

Zeng

et al. 2017

Journal of Hydrometeorology

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Irrigation, while being an important anthropogenic factor affecting the local to regional water cycle, is not typically represented in regional climate models. An irrigation scheme is incorporated into the Noah land surface scheme of the Weather Research and Forecasting (WRF) Model that has a calibrated convective parameterization and a tracer package is used to tag and track water vapor. To assess the impact of irrigation over the California Central Valley (CCV) on the regional climate of the U.S. Southwest, simulations are run (for three dry and three wet years) both with and without the irrigation scheme. Incorporation of the irrigation scheme resulted in simulated surface air temperature and humidity that were closer to observations, decreased depth of the planetary boundary layer over the CCV, and increased convective available potential energy. The result was an overall increase in precipitation over the Sierra Nevada range and the Colorado River basin during the summer. Water vapor rising from the irrigated region mainly moved northeastward and contributed to precipitation in Nevada and Idaho. Specifically, the results indicate increased precipitation on the windward side of the Sierra Nevada and over the Colorado River basin. The former is possibly linked to a sea-breeze-type circulation near the CCV, while the latter is likely associated with a wave pattern related to latent heat release over the moisture transport belt.

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Section: A Backgroundmentioning

confidence: 99%

Section: A Backgroundmentioning

confidence: 99%

Section: A Backgroundmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Irrigation over the California Central Valley on Regional Climate

Yang

Domínguez²,

Zeng

et al. 2017

Journal of Hydrometeorology

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“…Irrigation is vital to feeding the world's population and accounts for ∼ 40 % of global food production and 20 % of arable land (Molden, 2007;Schultz et al, 2005). Approximately 70 % of global freshwater withdrawals (FAO, 2014) are used to meet the demand for irrigation, thereby altering the hydrologic cycle and raising questions about water resources sustainability.…”

Section: Introductionmentioning

confidence: 99%

Assessment of irrigation physics in a land surface modeling framework using non-traditional and human-practice datasets

Lawston

Santanello

Franz

et al. 2017

Hydrol. Earth Syst. Sci.

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Abstract. Irrigation increases soil moisture, which in turn controls water and energy fluxes from the land surface to the planetary boundary layer and determines plant stress and productivity. Therefore, developing a realistic representation of irrigation is critical to understanding land-atmosphere interactions in agricultural areas. Irrigation parameterizations are becoming more common in land surface models and are growing in sophistication, but there is difficulty in assessing the realism of these schemes, due to limited observations (e.g., soil moisture, evapotranspiration) and scant reporting of irrigation timing and quantity. This study uses the Noah land surface model run at high resolution within NASA's Land Information System to assess the physics of a sprinkler irrigation simulation scheme and model sensitivity to choice of irrigation intensity and greenness fraction datasets over a small, high-resolution domain in Nebraska. Differences between experiments are small at the interannual scale but become more apparent at seasonal and daily timescales. In addition, this study uses point and gridded soil moisture observations from fixed and roving cosmic-ray neutron probes and co-located human-practice data to evaluate the realism of irrigation amounts and soil moisture impacts simulated by the model. Results show that field-scale heterogeneity resulting from the individual actions of farmers is not captured by the model and the amount of irrigation applied by the model exceeds that applied at the two irrigated fields. However, the seasonal timing of irrigation and soil moisture contrasts between irrigated and non-irrigated areas are simulated well by the model. Overall, the results underscore the necessity of both high-quality meteorological forcing data and proper representation of irrigation for accurate simulation of water and energy states and fluxes over cropland.

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“…Ozdogan et al (2010) integrated satellite-derived irrigation data and high-resolution crop-type information into a land surface model to investigate the effects of irrigation on the land surface. They found that a 12% increase in evapotranspiration was caused by irrigation, with an equivalent reduction in sensible heat flux during the growing season of 2003.…”

Section: Introductionmentioning

confidence: 99%

Effects of anthropogenic groundwater exploitation on land surface processes: A case study of the Haihe River Basin, northern China

Zou

Xie²,

Zhan

et al. 2015

Journal of Hydrology

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s u m m a r yIn this study, we incorporated a groundwater exploitation scheme into the land surface model CLM3.5 to investigate the effects of the anthropogenic exploitation of groundwater on land surface processes in a river basin. Simulations of the Haihe River Basin in northern China were conducted for the years 1965-2000 using the model. A control simulation without exploitation and three exploitation simulations with different water demands derived from socioeconomic data related to the Basin were conducted. The results showed that groundwater exploitation for human activities resulted in increased wetting and cooling effects at the land surface and reduced groundwater storage. A lowering of the groundwater table, increased upper soil moisture, reduced 2 m air temperature, and enhanced latent heat flux were detected by the end of the simulated period, and the changes at the land surface were related linearly to the water demands. To determine the possible responses of the land surface processes in extreme cases (i.e., in which the exploitation process either continued or ceased), additional hypothetical simulations for the coming 200 years with constant climate forcing were conducted, regardless of changes in climate. The simulations revealed that the local groundwater storage on the plains could not contend with high-intensity exploitation for long if the exploitation process continues at the current rate. Changes attributable to groundwater exploitation reached extreme values and then weakened within decades with the depletion of groundwater resources and the exploitation process will therefore cease. However, if exploitation is stopped completely to allow groundwater to recover, drying and warming effects, such as increased temperature, reduced soil moisture, and reduced total runoff, would occur in the Basin within the early decades of the simulation period. The effects of exploitation will then gradually disappear, and the variables will approach the natural state and stabilize at different rates. Simulations were also conducted for cases in which exploitation either continues or ceases using future climate scenario outputs from a general circulation model. The resulting trends were almost the same as those of the simulations with constant climate forcing, despite differences in the climate data input. Therefore, a balance between slow groundwater restoration and rapid human development of the land must be achieved to maintain a sustainable water resource.

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Simulating the Effects of Irrigation over the United States in a Land Surface Model Based on Satellite-Derived Agricultural Data

Cited by 285 publications

References 45 publications

Impact of Irrigation over the California Central Valley on Regional Climate

Impact of Irrigation over the California Central Valley on Regional Climate

Assessment of irrigation physics in a land surface modeling framework using non-traditional and human-practice datasets

Effects of anthropogenic groundwater exploitation on land surface processes: A case study of the Haihe River Basin, northern China

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