Evapotranspiration and water balance of an anthropogenic coastal desert wetland: Responses to fire, inflows and salinities

Glenn, Edward P.; Mexicano, Lourdes; Garcı́a-Hernández, Jaqueline; Nagler, Pamela L.; Gomez-Sapiens, M.; Tang, Dawei; Lomeli, Marcelo A.; Ramírez‐Hernández, Jorge; Zamora-Arroyo, Francisco

doi:10.1016/j.ecoleng.2012.06.043

Cited by 38 publications

(27 citation statements)

References 46 publications

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“…A significant decrease in rainfall in January 2013 imposed stress conditions to the vegetation in Veale Gardens. This finding is in line with Nagler et al [23] and Glenn et al [57] who found that remotely sensed ET using a VI approach is a good estimator only in unstressed conditions. Glenn et al [57] NDVI-turf accuracy and they also suggested considering the salinity and hydraulic gradients that greatly affect ET measurements.…”

Section: Discussionsupporting

confidence: 82%

“…The strong significant positive correlation between ET WV2 and ET WUCOLS (r 2 = 0.96, p > 0.05) demonstrates well the feasibility and practicality of a remotely-sensed ET estimation approach in Veale Gardens. This finding is in line with several studies that have found a strong and reliable relationship between aerial-satellite-based Landscape NDVI measurements and ground-based ET measurements [17,[53][54][55][56][57][58][59]. A significant decrease in rainfall in January 2013 imposed stress conditions to the vegetation in Veale Gardens.…”

Section: Discussionsupporting

confidence: 79%

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High Spatial Resolution WorldView-2 Imagery for Mapping NDVI and Its Relationship to Temporal Urban Landscape Evapotranspiration Factors

et al. 2014

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Evapotranspiration estimation has benefitted from recent advances in remote sensing and GIS techniques particularly in agricultural applications rather than urban environments. This paper explores the relationship between urban vegetation evapotranspiration (ET) and vegetation indices derived from newly-developed high spatial resolution WorldView-2 imagery. The study site was Veale Gardens in Adelaide, Australia. Image processing was applied on five images captured from February 2012 to February 2013 using ERDAS Imagine. From 64 possible two band combinations of WorldView-2, the most reliable one (with the maximum median differences) was selected. Normalized Difference Vegetation Index (NDVI) values were derived for each category of landscape cover, namely trees, shrubs, turf grasses, impervious pavements, and water bodies. Urban landscape evapotranspiration rates for Veale Gardens were estimated through field monitoring using observational-based landscape coefficients. The relationships between remotely sensed NDVIs for the entire Veale Gardens and for individual NDVIs of different vegetation covers were compared with field measured urban landscape evapotranspiration rates. The water stress conditions experienced in January

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Section: Discussionsupporting

confidence: 82%

Section: Discussionsupporting

confidence: 79%

High Spatial Resolution WorldView-2 Imagery for Mapping NDVI and Its Relationship to Temporal Urban Landscape Evapotranspiration Factors

et al. 2014

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“…Within the Delta salinity gradients exist even with the minimal flows permitted today [e.g. Cienega de Santa Clara (Glenn et al 2013)]. Furthermore, although, we discuss salinity gradients in our paper, we also consider the possibility that other ecological factors are important to the ecological distinction of C. hubbsi, including the loss of sediment supply.…”

Section: ) Brusca Forces Our Work Onto His Primary Concern Which Invmentioning

confidence: 99%

Conflict in the Colorado Delta - A response to Brusca (2018)

Jacobs

Lau

2018

Preprint

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Abstract:In his enthusiasm to highlight the impacts of fisheries in the Gulf of California, Richard Brusca (Brusca 2018) attacks our paper which is about a largely separate issue, makes false claims, does a disservice to his own cause, and undermines science. Brusca sets out to defame our work because, as he states, he fears that third parties will misuse work of this type in fisheries management. This is unfortunate. Brusca's effort to manipulate and suppress scientific work because he fears managers will use it inappropriately is overt and chilling. We respond to Brusca's numerous and varied criticisms in as much detail and in as measured a way as we can muster.PeerJ Preprints | https://doi.org/10.7287/peerj.preprints.26953v1 | CC BY 4.0 Open Access |

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“…Satellite imagery has been used to estimate ET in agricultural and natural ecosystems for the past 25 years [21]. Vegetation index methods, as applied in this study, use optical bands to estimate canopy greenness, which is directly related to the transpiration component of ET.…”

Section: Remote Sensing Methodsmentioning

confidence: 99%

Comparing Three Approaches of Evapotranspiration Estimation in Mixed Urban Vegetation: Field-Based, Remote Sensing-Based and Observational-Based Methods

et al. 2016

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Despite being the driest inhabited continent, Australia has one of the highest per capita water consumptions in the world. In addition, instead of having fit-for-purpose water supplies (using different qualities of water for different applications), highly treated drinking water is used for nearly all of Australia's urban water supply needs, including landscape irrigation. The water requirement of urban landscapes, particularly urban parklands, is of growing concern. The estimation of evapotranspiration (ET) and subsequently plant water requirements in urban vegetation needs to consider the heterogeneity of plants, soils, water, and climate characteristics. This research contributes to a broader effort to establish sustainable irrigation practices within the Adelaide Parklands in Adelaide, South Australia. In this paper, two practical ET estimation approaches are compared to a detailed Soil Water Balance (SWB) analysis over a one year period. One approach is the Water Use Classification of Landscape Plants (WUCOLS) method, which is based on expert opinion on the water needs of different classes of landscape plants. The other is a remote sensing approach based on the Enhanced Vegetation Index (EVI) from Moderate Resolution Imaging Spectroradiometer (MODIS) sensors on the Terra satellite. Both methods require knowledge of reference ET calculated from meteorological data. The SWB determined that plants consumed 1084 mm¨yr´1 of water in ET with an additional 16% lost to drainage past the root zone, an amount sufficient to keep salts from accumulating in the root zone. ET by MODIS EVI was 1088 mm¨yr´1, very close to the SWB estimate, while WUCOLS estimated the total water requirement at only 802 mm¨yr´1, 26% lower than the SWB estimate and 37% lower than the amount actually added including the drainage fraction. Individual monthly ET by MODIS was not accurate, but these errors were cancelled out to give good agreement on an annual time step. We conclude that the MODIS EVI method can provide accurate estimates of urban water requirements in mixed landscapes large enough to be sampled by MODIS imagery with 250-m resolution such as parklands and golf courses.

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Evapotranspiration and water balance of an anthropogenic coastal desert wetland: Responses to fire, inflows and salinities

Cited by 38 publications

References 46 publications

High Spatial Resolution WorldView-2 Imagery for Mapping NDVI and Its Relationship to Temporal Urban Landscape Evapotranspiration Factors

High Spatial Resolution WorldView-2 Imagery for Mapping NDVI and Its Relationship to Temporal Urban Landscape Evapotranspiration Factors

Conflict in the Colorado Delta - A response to Brusca (2018)

Comparing Three Approaches of Evapotranspiration Estimation in Mixed Urban Vegetation: Field-Based, Remote Sensing-Based and Observational-Based Methods

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