scholarly journals Enhanced mesoscale climate projections in TAR and AR5 IPCC scenarios: a case study in a Mediterranean climate (Araucanía Region, south central Chile)

SpringerPlus ◽  
2016 ◽  
Vol 5 (1) ◽  
Author(s):  
R. Orrego ◽  
R. Abarca-del-Río ◽  
A. Ávila ◽  
L. Morales
Keyword(s):  
Mediterranean Climate ◽  
Climate Projections ◽  
Central Chile ◽  
South Central

scholarly journals Development of Downscaled Climate Projections: A Case Study of the Red River Basin, South-Central U.S.

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Darrian Bertrand ◽  
Renee A. McPherson
Keyword(s):  
River Basin ◽  
Spatial Resolution ◽  
Daily Precipitation ◽  
Decision Makers ◽  
Red River ◽  
Climate Projections ◽  
South Central ◽  
Resource Managers ◽  
Red River Basin

Climate models provide information that resource managers, policy makers, and researchers can use when planning for the future. While this information is valuable in the broad sense, the low spatial-resolution often lacks local details that resource managers and decision makers need to plan for their communities. Therefore, statistically downscaled climate projections provide a high-resolution output and offer local information that is more beneficial than coarse-resolution global climate model output. In the Red River Basin, located in the south-central U.S., this detailed information is used to develop long-term water plans. This area is prone to drought conditions and heavy precipitation events, and studies have consistently estimated that this will continue in the future. This paper introduces a dataset of statistically downscaled climate projections of daily minimum and maximum temperature and daily precipitation that is a useful tool for studies regarding climatological and hydrological aspects in the region. The dataset was created using two quantile mapping techniques to downscale the CCSM4, MPI-ESM-LR, and MIROC5 model outputs to a 0.1-degree spatial resolution. Furthermore, we describe the added value of coproduction of knowledge between climate scientists and end users, or in this case impacts modelers and decision makers, for creating climate projections that can be used for climate risk assessments. A case study of the data’s development and application is provided, detecting the mean daily changes in temperature and precipitation through the end of the century in the Red River Basin for two representative concentration pathways. After applying the users’ inputs to develop the datasets, results for this example estimate an increase in mean daily precipitation in the eastern portion of the basin and as much as a 15% decline in the west by the end of the century. Furthermore, mean daily temperature is expected to rise across the entire basin in all scenarios by up to 6–7°C.

scholarly journals Ex Post Analysis of Water Supply Demand in an Agricultural Basin by Multi-Source Data Integration

2021 ◽  
Vol 13 (11) ◽  
pp. 2022
Author(s):  
Mario Lillo-Saavedra ◽  
Viviana Gavilán ◽  
Angel García-Pedrero ◽  
Consuelo Gonzalo-Martín ◽  
Felipe de la Hoz ◽  
...  
Keyword(s):  
Supply And Demand ◽  
Landsat 8 ◽  
Multiple Sources ◽  
Central Chile ◽  
South Central ◽  
Ex Post ◽  
Source Data ◽  
Spatio Temporal ◽  
The Difference

In this work, we present a new methodology integrating data from multiple sources, such as observations from the Landsat-8 (L8) and Sentinel-2 (S2) satellites, with information gathered in field campaigns and information derived from different public databases, in order to characterize the water demand of crops (potential and estimated) in a spatially and temporally distributed manner. This methodology is applied to a case study corresponding to the basin of the Longaví River, located in south-central Chile. Potential and estimated demands, aggregated at different spatio-temporal scales, are compared to the streamflow of the Longaví River, as well as extractions from the groundwater system. The results obtained allow us to conclude that the availability of spatio-temporal information on the water availability and demand pairing allows us to close the water gap—i.e., the difference between supply and demand—allowing for better management of water resources in a watershed.

scholarly journals Cardiorespiratory Fitness: Reference on the Six-Minute Walk Test and Oxygen Consumption in Adolescents from South-Central Chile

2021 ◽  
Vol 18 (5) ◽  
pp. 2474
Author(s):  
Jaime Vásquez-Gómez ◽  
Nelson Gatica Salas ◽  
Pedro Jiménez Villarroel ◽  
Luis Rojas-Araya ◽  
Cesar Faundez-Casanova ◽  
...  
Keyword(s):  
Cardiorespiratory Fitness ◽  
Reference Values ◽  
Estimation Error ◽  
Walk Test ◽  
Central Chile ◽  
Six Minute Walk Test ◽  
Body Adiposity ◽  
South Central ◽  
Males And Females ◽  
Minute Walk

Cardiorespiratory fitness (CRF) provides oxygen to the exercising muscles and is related to body adiposity, with cardiometabolic variables. The aim was to develop reference values and a predictive model of CRF in Chilean adolescents. A total of 741 adolescents of both genders (15.7 years old) participated in a basic anthropometry, performance in the six-minute walk test (SMWT), and in Course Navette was measured. Percentiles were determined for the SMWT, for the V̇O2max, and an equation was developed to estimate it. The validity of the equation was checked using distribution assumptions and the Bland–Altman diagram. The STATA v.14 program was used (p < 0.05). The 50th percentile values for males and females in the SMWT and in the V̇O2max of Course Navette were, respectively, from 607 to 690 and from 630 to 641 m, and from 43.9 to 45 and from 37.5 to 31.5 mlO2·kg·min−1, for the range of 13 to 17 years. For its part, the model to predict V̇O2max incorporated gender, heart rate, height, waist-to-height ratio (WHR), and distance in the SMWT (R2 = 0.62; estimation error = 0.38 LO2·min−1; p <0.001). Reference values can guide physical fitness in Chilean adolescents, and V̇O2max was possible to predict from morphofunctional variables.

scholarly journals A field survey–based method to characterise landslide development: a case study at the high bluff of the Danube, south-central Hungary

Landslides ◽  
2019 ◽  
Vol 16 (8) ◽  
pp. 1567-1581 ◽  
Author(s):  
I. P. Kovács ◽  
Sz. Czigány ◽  
B. Dobre ◽  
Sz. Á. Fábián ◽  
M. Sobucki ◽  
...  
Keyword(s):  
Field Survey ◽  
South Central ◽  
Landslide Development

Error analysis of hybrid photovoltaic power forecasting models: A case study of mediterranean climate

2015 ◽  
Vol 100 ◽  
pp. 117-130 ◽  
Author(s):  
Maria Grazia De Giorgi ◽  
Paolo Maria Congedo ◽  
Maria Malvoni ◽  
Domenico Laforgia
Keyword(s):  
Error Analysis ◽  
Mediterranean Climate ◽  
Forecasting Models ◽  
Photovoltaic Power ◽  
Power Forecasting

Population Abundances, Tidal Movement, Burrowing Ability and Oxygen Uptake of Emerita analoga (Stimpson) (Crustacea, Anomura) on a Sandy Beach of South-Central Chile

2004 ◽  
Vol 25 (1) ◽  
pp. 71-89 ◽  
Author(s):  
Mariano Lastra ◽  
Eduardo Jaramillo ◽  
Jesus Lopez ◽  
Heraldo Contreras ◽  
Cristian Duarte ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Sandy Beach ◽  
Central Chile ◽  
South Central ◽  
Emerita Analoga ◽  
Tidal Movement
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