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References49
Newest
Published on Feb 15, 2014in Hydrological Processes3.19
Anna Ukkola6
Estimated H-index: 6
(Macquarie University),
S.J. Murray7
Estimated H-index: 7
(UoB: University of Bristol)
Assessments of water resources by using macro-scale models tend to be conducted at the continental or large catchment scale. However, security of freshwater supplies is a local issue and thus necessitates study at such a scale. This research aims to evaluate the suitability of the Land Processes and eXchanges dynamic global vegetation model (LPX-DGVM) for simulating runoff for small catchments in the UK. Simulated annual and monthly runoff is compared against the National River Flow Archive stre...
Published on Feb 1, 2014in Ecohydrology2.56
S.J. Murray7
Estimated H-index: 7
(UoB: University of Bristol)
The Land-surface Processes and eXchanges Dynamic Global Vegetation Model (LPX-DGVM, one of several developments of the Lund–Potsdam–Jena (LPJ) model) is evaluated in terms of its interception component and used to simulate trends in 20th century global relative throughfall from natural vegetation. Mean global annual runoff is estimated to have been reduced by 163 ± 19 km3 year−1 between 1901 and 2006 as a result of biophysical changes controlling throughfall generation. Widespread decreases in r...
Published on Feb 1, 2013in Progress in Physical Geography4.33
S.J. Murray7
Estimated H-index: 7
(UoB: University of Bristol),
Ian M. C. Watson16
Estimated H-index: 16
(UoB: University of Bristol),
I.C. Prentice1
Estimated H-index: 1
(Macquarie University)
Dynamic global vegetation models (DGVMs) offer explicit representations of the land surface through time and have been used to research large-scale hydrological responses to climate change. These applications are discussed and comparisons of model inputs and formulations are made among and between DGVMs and global hydrological models. It is shown that the configuration of process representations and data inputs are what makes a given DGVM unique within the family of vegetation models. The variet...
Published on Jul 1, 2012in Journal of Hydrology4.41
S.J. Murray7
Estimated H-index: 7
(UoB: University of Bristol),
P. N. Foster11
Estimated H-index: 11
(UoB: University of Bristol),
I. C. Prentice22
Estimated H-index: 22
(Imperial College London)
Summary The Land-surface Processes and eXchanges (LPX) dynamic global vegetation model, which incorporates process-based representations of the terrestrial biosphere, is used to simulate the effects of climatic change (via pattern-scaled temperature change scenarios based on six general circulation models) on global and large catchment freshwater resources towards the end of the 21st century. Socio-economic change is addressed by using water withdrawal estimates from the WaterGAP hydrological mo...
Published on Sep 1, 2011in Global Biogeochemical Cycles5.73
I. C. Prentice22
Estimated H-index: 22
(UoB: University of Bristol),
Doug Kelley3
Estimated H-index: 3
(UoB: University of Bristol)
+ 3 AuthorsPatrick J. Bartlein76
Estimated H-index: 76
(UO: University of Oregon)
[1] Four CO2 concentration inversions and the Global Fire Emissions Database (GFED) versions 2.1 and 3 are used to provide benchmarks for climate-driven modeling of the global land-atmosphere CO2 flux and the contribution of wildfire to this flux. The Land surface Processes and exchanges (LPX) model is introduced. LPX is based on the Lund-Potsdam-Jena Spread and Intensity of FIRE (LPJ-SPITFIRE) model with amended fire probability calculations. LPX omits human ignition sources yet simulates many ...
Published on Sep 1, 2011in Global Biogeochemical Cycles5.73
I. C. Prentice15
Estimated H-index: 15
,
Doug Kelley3
Estimated H-index: 3
+ 3 AuthorsPatrick J. Bartlein76
Estimated H-index: 76
(UO: University of Oregon)
Tajdarul H. Syed12
Estimated H-index: 12
,
James S. Famiglietti62
Estimated H-index: 62
+ 2 AuthorsKyle A. Hilburn1
Estimated H-index: 1
Freshwater discharge from the continents is a key component of Earth’s water cycle that sustains human life and ecosystem health. Surprisingly, owing to a number of socioeconomic and political obstacles, a comprehensive global river discharge observing system does not yet exist. Here we use 13 years (1994–2006) of satellite precipitation, evaporation, and sea level data in an ocean mass balance to estimate freshwater discharge into the global ocean. Results indicate that global freshwater discha...
Published on Oct 1, 2010in Geophysical Research Letters4.58
Yoshihide Wada38
Estimated H-index: 38
(UU: Utrecht University),
Ludovicus P. H. van Beek37
Estimated H-index: 37
(UU: Utrecht University)
+ 3 AuthorsMarc F. P. Bierkens51
Estimated H-index: 51
(UU: Utrecht University)
[1] In regions with frequent water stress and large aquifer systems groundwater is often used as an additional water source. If groundwater abstraction exceeds the natural groundwater recharge for extensive areas and long times, overexploitation or persistent groundwater depletion occurs. Here we provide a global overview of groundwater depletion (here defined as abstraction in excess of recharge) by assessing groundwater recharge with a global hydrological model and subtracting estimates of gro...
Published on Jul 6, 2010in Hydrology and Earth System Sciences4.94
S.J. Murray7
Estimated H-index: 7
(UoB: University of Bristol),
P. N. Foster11
Estimated H-index: 11
(UoB: University of Bristol),
I. C. Prentice22
Estimated H-index: 22
(UoB: University of Bristol)
Global freshwater resources are sensitive to changes in climate, land cover and population density and distribution. The Land-surface Processes and eXchanges Dynamic Global Vegetation Model is a recent development of the Lund-Potsdam-Jena model with improved representation of fire-vegetation interactions. It allows simultaneous consideration of the effects of changes in climate, CO 2 concentration, natural vegetation and fire regime shifts on the continental hydrological cycle. Here the model is...
Published on Sep 17, 2009in Geophysical Research Letters4.58
V. M. Tiwari1
Estimated H-index: 1
(NGRI: National Geophysical Research Institute),
John Wahr61
Estimated H-index: 61
(CIRES: Cooperative Institute for Research in Environmental Sciences),
Sean Swenson38
Estimated H-index: 38
(NCAR: National Center for Atmospheric Research)
[1] Northern India and its surroundings, home to roughly 600 million people, is probably the most heavily irrigated region in the world. Temporal changes in Earth's gravity field in this region as recorded by the GRACE satellite mission, reveal a steady, large-scale mass loss that we attribute to excessive extraction of groundwater. Combining the GRACE data with hydrological models to remove natural variability, we conclude the region lost groundwater at a rate of 54 ± 9 km3/yr between April, 20...
Cited By13
Newest
Published on Mar 4, 2017in International Journal of Remote Sensing2.49
Keshav Dev Singh4
Estimated H-index: 4
(IITB: Indian Institute of Technology Bombay),
Desikan Ramakrishnan2
Estimated H-index: 2
(IITB: Indian Institute of Technology Bombay)
ABSTRACTFrom geological and planetary exploration perspectives, automated sub-pixel classification of hyperspectral data is the most difficult task as it involves blind unmixing with library spectra of minerals. In this study, we demonstrate a procedure involving spectral transformation and linear unmixing to achieve the above task. For this purpose, infrared spectra of rocks from the spectral library, field, and remotely sensed hyperspectral image cube were used. Potential spectra of minerals f...
Published on Jan 1, 2017
Mara Camaiti4
Estimated H-index: 4
,
Marco Benvenuti21
Estimated H-index: 21
(UniFI: University of Florence)
+ 2 AuthorsSandro Moretti24
Estimated H-index: 24
(UniFI: University of Florence)
The characterization of artistic and historical surfaces in a wide, fast, low-expense, and noninvasive way is a necessity for the conservation of these cultural assets. Hyperspectral sensors having bands in the visible-near infrared and short-wave infrared (VNIR-SWIR) regions are commonly used for determining the characteristics and properties of many materials (such as soils, minerals, rocks, water, vegetation) because of their ability to provide information in a fast and nondestructive way. Am...
Published on Oct 1, 2016in Journal of The Geological Society of India0.99
Nisha Rani2
Estimated H-index: 2
(VIT University),
Venkata Ravibabu Mandla4
Estimated H-index: 4
(VIT University),
Tejpal Singh7
Estimated H-index: 7
(Central Scientific Instruments Organisation)
SVM and SAM classifiers for the lithological mapping using Hyperion data in parts of Gadag schist belt of western Dharwar craton, Karnataka, India were used. The main objective of the present study is to assess and compare the potential use of Hyperion data set for lithological mapping. Accuracy assessment of the derived thematic maps was based on the analysis of the confusion matrix statistics computed for each classification map. For consistency, the same set of validation points were used in ...
Published on Nov 30, 2015in International Journal of Climatology3.60
Bhawna Sharma1
Estimated H-index: 1
,
Nihar Jangle2
Estimated H-index: 2
+ 1 AuthorsDavid M. Dror18
Estimated H-index: 18
(EUR: Erasmus University Rotterdam)
Groundwater is the source of almost 85% of freshwater requirement in rural India and 50% in urban India. Bihar is particularly reliant on groundwater, as it has the lowest supply of piped drinking water among Indian states. We examine the exposure of this resource to stress due to climate change; specifically, we estimate the influence of climate parameters on availability of groundwater in Bihar in about 10 years (2021) and 40 years (2051) from the most recent reference-point of 2011 for which ...
Depleting water resources has put the sustainability of Indian agriculture at stake. To meet the future food demand of growing population, India must prudently manage its irrigation water. Back up of need-based technology and its infusion among the farming community plus the necessary policy support would be vital. This paper discusses issues and concerns related to agricultural water management and focuses on agronomic practices and irrigation techniques (tensiometer aided irrigation, optimum p...
Published on Dec 1, 2014in Landslides4.25
Omar F. Althuwaynee8
Estimated H-index: 8
(UPM: Universiti Putra Malaysia),
Biswajeet Pradhan68
Estimated H-index: 68
(UPM: Universiti Putra Malaysia)
+ 1 AuthorsJung Hyun Lee5
Estimated H-index: 5
(Sejong University)
An ensemble algorithm of data mining decision tree (DT)-based CHi-squared Automatic Interaction Detection (CHAID) is widely used for prediction analysis in variety of applications. CHAID as a multivariate method has an automatic classification capacity to analyze large numbers of landslide conditioning factors. Moreover, it results two or more nodes for each independent variable, where every node contains numbers of presence or absence of landslides (dependent variable). Other DT methods such as...
Published on Oct 17, 2014in Annual Review of Environment and Resources8.62
Joshua B. Fisher37
Estimated H-index: 37
(California Institute of Technology),
Deborah N. Huntzinger18
Estimated H-index: 18
+ 1 AuthorsStephen Sitch74
Estimated H-index: 74
(University of Exeter)
The land surface comprises the smallest areal fraction of the Earth system's major components (e.g., versus atmosphere or ocean with cryosphere). As such, how is it that some of the largest sources of uncertainty in future climate projections are found in the terrestrial biosphere? This uncertainty stems from how the terrestrial biosphere is modeled with respect to the myriad of biogeochemical, physical, and dynamic processes represented (or not) in numerous models that contribute to projections...
Published on Oct 1, 2014in Journal of Earth System Science
P. K. Jana5
Estimated H-index: 5
,
S Bhattacharyya , A Banerjee
The paper presents the nature of variations of tropospheric and total ozone column retrieved from the Convective Cloud Differential (CCD) technique, Ozone Monitoring Instrument (OMI), and Total Ozone Mapping Spectrometer (TOMS) data, National Aeronautics and Space Administrations (NASA), USA, respectively; surface temperature, relative humidity, total rainfall, ozone precursors (non-methane hydrocarbon, carbon monoxide, nitrogen dioxide, and sulphur dioxide) that are collected from India Meteoro...
Published on Feb 1, 2014in Ecohydrology2.56
S.J. Murray7
Estimated H-index: 7
(UoB: University of Bristol)
The Land-surface Processes and eXchanges Dynamic Global Vegetation Model (LPX-DGVM, one of several developments of the Lund–Potsdam–Jena (LPJ) model) is evaluated in terms of its interception component and used to simulate trends in 20th century global relative throughfall from natural vegetation. Mean global annual runoff is estimated to have been reduced by 163 ± 19 km3 year−1 between 1901 and 2006 as a result of biophysical changes controlling throughfall generation. Widespread decreases in r...
Published on Jan 1, 2014
Omar F. Althuwaynee8
Estimated H-index: 8
(UPM: Universiti Putra Malaysia),
Biswajeet Pradhan68
Estimated H-index: 68
(UPM: Universiti Putra Malaysia)
The present study analyses the spatial patterns of historical/present landslide inventory in the Kuala Lumpur and vicinity areas. The main objective is to statistically test the spatial nature pattern of landslide inventory, i.e. to determine whether it rejects the independency of spatial pattern or not (i.e. random or cluster distribution). For that purpose, the nearest neighbor index (NNI) was applied to measure and test the randomness. First, we tested the spatial patterns of 153 landslides. ...
View next paperA personal view on future global vegetation parameter dataset and its research for global/continental scale hydro-climate simulations