• References (50)
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References50
Published on Sep 1, 2015in Journal of Hydrology: Regional Studies
Osvaldo Cabral17
Estimated H-index: 17
(Empresa Brasileira de Pesquisa Agropecuária),
Humberto Ribeiro da Rocha29
Estimated H-index: 29
(University of São Paulo)
+ 2 AuthorsMarcos A.V. Ligo8
Estimated H-index: 8
(Empresa Brasileira de Pesquisa Agropecuária)
Abstract Study region The area of woodland savanna (cerrado) is located in southeast Brazil (21°36′ to 44′ S, 47°34′ to 41′ W). Study focus The cerrado sensu-stricto savanna evapotranspiration was observed using the eddy-covariance method over three years. New hydrological insights for the region The first year total rainfall ( R = 1664 mm) was 11% above the long-term rainfall (1498 mm) and the total evapotranspiration (ET = 1242 mm) and water equivalent of available energy ( A v = 1835 mm) were...
9 Citations Source Cite
Published on Dec 1, 2015in Agricultural and Forest Meteorology 4.04
Yan Bai1
Estimated H-index: 1
(Lanzhou University),
Gaofeng Zhu14
Estimated H-index: 14
(Lanzhou University)
+ 6 AuthorsLili Feng1
Estimated H-index: 1
(Lanzhou University)
Canopy conductance (g(c)) is a key parameter that determines plant transpiration rate, and it is sensitive to multiple environmental variables. The relationships between g(c), and micrometeorological variables still need to be investigated across a wide range of biomes and climatic conditions. In this study, sap flow, micrometeorological and biological factors for a vineyard at an oasis in Northwest China were measured from July to September in 2013 and 2014. Values of g(c) were calculated from ...
10 Citations Source Cite
Published on Apr 30, 2016in Hydrological Processes 3.18
Giulia Zuecco8
Estimated H-index: 8
(University of Padua),
Daniele Penna17
Estimated H-index: 17
(Free University of Bozen-Bolzano)
+ 1 AuthorsH J van Meerveld12
Estimated H-index: 12
(University of Zurich)
This study presents a versatile index for the quantification of hysteretic loops between hydrological variables at the runoff event timescale. The conceptual development of the index is based on a normalization of the input data and the computation of definite integrals at fixed intervals of the independent variable. The sum, the minimum and the maximum of the differences between integrals computed for the rising and the falling curves provide information on the direction, the shape and the exte...
19 Citations Source Cite
Published on Oct 1, 1988in Ecology 4.62
Dennis D. Baldocchi107
Estimated H-index: 107
,
Bruce B. Hincks1
Estimated H-index: 1
,
Tilden P. Meyers65
Estimated H-index: 65
(National Oceanic and Atmospheric Administration)
Ecologists are expected to play an important role in future studies of the biosphere/atmosphere exchange of materials associated with the major biogeochemical cycles and climate. Most studies of material exchange reported in the ecological literature have relied on chamber techniques. Micrometeorological techniques provide an alternative means of measuring these exchange rates and are expected to be used more often in future ecological studies, since they have many advantages over the chamber te...
944 Citations Source Cite
Tatiana Mora Kuplich9
Estimated H-index: 9
(National Institute for Space Research),
Andreise Moreira2
Estimated H-index: 2
(National Institute for Space Research),
Denise Cybis Fontana8
Estimated H-index: 8
(Universidade Federal do Rio Grande do Sul)
The objective of this study was the identification of the phenology dynamics of the main types of vegetation of Rio Grande do Sul state, for the period from 2000 to 2010, using Enhanced Vegetation Index data through the wavelet transform. The identification of cycles or seasonal patterns in time series of vegetation indices obtained by orbital sensors allows the observation of anomalies and effects of climate and environmental change. A temporal profile of Enhanced Vegetation Index was built for...
7 Citations Source Cite
Milena A. Goulart1
Estimated H-index: 1
,
Luciana Sanches10
Estimated H-index: 10
+ 1 AuthorsOsvaldo Borges Pinto Junior3
Estimated H-index: 3
The temporal-spatial variation of evapotranspiration was analysed using Morlet wavelet in a forest of Vochysia divergens Pohl (locally known as Cambarazal) in Pantanal wetland in Mato Grosso state, Brazil. This area is inserted within the physiographic plain of the Pantanal and is seasonally flooded. The net radiation, solar global radiation, air temperature, and relative humidity data were collected by sensors installed in a micrometeorological tower. The daily analysis of time series by Morlet...
4 Citations Source Cite
Published on Jun 1, 1998in Agricultural and Forest Meteorology 4.04
Kentaro Takagi21
Estimated H-index: 21
,
Taro Tsuboya4
Estimated H-index: 4
,
Hidenori Takahashi14
Estimated H-index: 14
Abstract In order to evaluate the stomatal control on the canopy evapotranspiration, diurnal variations in stomatal conductance ( g s ) of individual plants and bulk surface conductance ( G s ) of the canopy were measured independently in the Sarobetsu mire of northern Japan. During July–August 1993 and 1994, g s was measured for four species ( Sasa palmata , Moliniopsis japonica , Myrica gale L. var. tomentosa and Ilex crenata var. paludosa ) growing in the mire. In July and August 1995, G s wa...
42 Citations Source Cite
Published on Sep 1, 2012in Agricultural and Forest Meteorology 4.04
Taro Nakai15
Estimated H-index: 15
(University of Alaska Fairbanks),
K. Shimoyama2
Estimated H-index: 2
(Hokkaido University)
Abstract Measurements of eddy fluxes are premised on the assumption that wind velocities are measured accurately by an ultrasonic anemometer. Recently, Gill ultrasonic anemometers have been shown to suffer errors depending on the angle of attack, which is the angle between the wind vector and the horizontal. The correction of these errors results in general eddy flux increases. However, since calibration for error dependent on angle of attack was carried out in a wind tunnel experiment under con...
65 Citations Source Cite
Published on Oct 14, 2014in Remote Sensing 3.41
Hella Ellen Ahrends6
Estimated H-index: 6
(University of Cologne),
Rainer Haseneder-Lind1
Estimated H-index: 1
(University of Cologne)
+ 3 AuthorsUwe Rascher2
Estimated H-index: 2
(University of Kiel)
The latent heat flux, one of the key components of the surface energy balance, can be inferred from remotely sensed thermal infrared data. However, discrepancies between modeled and observed evapotranspiration are large. Thermal cameras might provide a suitable tool for model evaluation under variable atmospheric conditions. Here, we evaluate the results from the Penman-Monteith, surface energy balance and Bowen ratio approaches, which estimate the diurnal course of latent heat fluxes at a ripe ...
2 Citations Source Cite
Published on Dec 1, 2011in Wetlands 1.81
Luciana Sanches10
Estimated H-index: 10
(Universidade Federal de Mato Grosso),
George L. Vourlitis13
Estimated H-index: 13
(California State University)
+ 2 AuthorsJosé de Souza Nogueira17
Estimated H-index: 17
(Universidade Federal de Mato Grosso)
The recent and widespread expansion of the pioneer tree species Vochysia divergens Pohl into western Brazil has the potential to significantly alter the structure and function of the Pantanal—a UNESCO World Heritage Site and the World’s largest tropical wetland. Here we assess the seasonal pattern of evapotranspiration (ET) and micrometeorological variables of V. divergens (locally known as cambarazal), located in the Northeast of the Brazilian Pantanal. ET was calculated from a number of microm...
28 Citations Source Cite
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