Resultados de búsqueda - "Interpol"

Distribution of duricrusted bauxites and laterites on the Bamiléké plateau (West Cameroon): constraints from GIS mapping and geochemistry por Momo, M.N., Yemefack, Martin, Tematio, P., Beauvais, A., Ambrosi, J.

“…Alumina contents obtained from duricrust samples were analyzed by geostatistical methods and classical kriging interpolation to discriminate between bauxitic and ferruginous laterites. …”
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Hydrological impact assessment of climate change on Lake Tana’s water balance, Ethiopia por Nigatu, Z.M., Rientjes, T.H.M., Haile, Alemseged Tamiru

“…Over-lake evaporation is estimated by Hardgrave’s method, and over-lake precipitation is estimated by inverse distance weighing interpolation, whereas inflows from gauged and ungauged catchments are simulated by the HBV hydrological model. …”
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Genetic conservation in Parkia biglobosa (Fabaceae: Mimosoideae) - what do we know? por Lompo, D.J.-P., Vinceti, B., Gaisberger, H., Konrad, H., Duminil, J., Ouédraogo, M., Sina, S., Geburek, T.

“…Data of a large-scale genetic study based on allozyme markers showing a moderate genetic differentiation among populations were reanalyzed using an inverse dis-tance weighted interpolation function. Three distinctive regions of diversity based on allelic richness and expected heterozygosity were identified. …”
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Soil Organic Carbon Baselines for Land Degradation Neutrality: Map Accuracy and Cost Tradeoffs with Respect to Complexity in Otjozondjupa, Namibia por Nijbroek, Ravic P., Piikki, Kristin, Söderström, Mats, Kempen, Bas, Turner, Katrine Grace, Hengari, Simeon, Mutua, John Y.

“…If capacity is sufficient, the random forest DSM method out-performed other methods, but the improvement from using this more complex method compared to interpolating the soil sample data by ordinary kriging was minimal. …”
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Spatial analysis of Fasciola hepatica prevalence in sheep flocks from Córdoba, Argentina using GWR and IDW models por Ahumada, María Del Rosario, Denegri, David, Caffe, Gabriel, Hick, Michel V.H., Paz, Juan Mariano, Aguilar, Santiago, Celis Pirard, Clara, Motta, Carlos

“…Spatial analysis utilizing Inverse Distance Weighted (IDW) interpolation revealed a heterogeneous distribution, with a higher prevalence concentrated in the northern re gion. …”
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Estimating chlorophyll and nitrogen contents in maize (Zea mays L.) leaves with spectroscopic analysis por Ramos García, Carlos Arturo, Martínez Martínez, Luis Joel, Bernal Riobo, Jaime Humberto

“…Red-edge position linear interpolation (REP-L), Red-edge position linear extrapolation (REP-LE), REP-Inverted Gaussian fitting technique (REP-IG), REP-Polynomial fitting technique (REP-P) and NDVI had the best relationship with chlorophyll and nitrogen contents. …”
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Know the flow - spatial and temporal variation of DOC exports and the importance of monitoring site specific discharge por Larson, Johannes

“…Discharge was monitored at each site and exports were calculated using daily DOC concentrations interpolated from frequent water sampling. Positive correlations between discharge and DOC concentrations were observed for most of the sites. …”

Reducing vulnerability of rainfed agriculture through seasonal climate predictions: A case study on the rainfed rice production in Southeast Asia por Hayashi, Keiichi, Llorca, Lizzida, Rustini, Sri, Setyanto, Prihasto, Zaini, Zulkifli

“…However, CDFDM has a limitation in orographic precipitation, the high-resolution daily weather data or a sophisticated special interpolation method should be considered in order to improve the representation of the geographical pattern for the parameters derived from CDFDM…”
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Impacts of spatial and temporal station availability on gridded precipitation products in Central America por González‐Méndez, Isabel, Pons, Diego, Anderson, Talia G., Ayes-Rivera, Irma, Anchukaitis, Kevin J.

“…CRU exhibits the largest spatial decorrelation distances, suggesting inflated spatial coherence likely resulting from interpolation over data‐sparse regions. We find disagreement between the spatial representation of precipitation trends between reanalysis‐based and observation‐based data sets and show that the observed regional drying trend in eastern Honduras and Nicaragua in the GPCC and CHIRPS products may reflect the influence of one station rather than a broader, spatially coherent climate signal. …”
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A computer program for geostatistical and spatial analysis of crop model outputs por Thornton, Philip K., Booltink, H.W.G., Stoorvogel, J.J.

“…Users can run spatial simulation experiments and then analyze the results using (i) a geostatistical module to interpolate maps and produce probability surfaces from a network of data points and (ii) a utility that calculates agronomic and economic output statistics from model simulations and maps the results as polygons. …”
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Spatial modeling of risk in natural resource management por Jones, Peter G., Thornton, Philip K.

“…MarkSim is an application for generating synthetic daily weather files by estimating the third-order Markov model parameters from interpolated climate surfaces. The models can then be run for each distinct point on the map. …”
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Soil-Landscape Estimation and Evaluation Program (SLEEP) to predict spatial distribution of soil attributes for environmental modeling. por Ziadat, F.M., Dhanesh, Y., Shoemate, D., Srinivasan, R., Narasimhan, B., Tech, J.

“…An application of the tool demonstrated acceptable accuracy and better spatial distribution of soil attributes compared with two spatial interpolation techniques. The analysis indicated low sensitivity of SWAT prediction to the number of field observations when SLEEP is used to provide the soil layer. …”
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Working with climate data and niche modeling: I. Creation of bioclimatic variables por Ramírez Villegas, Julián Armando, Bueno Cabrera, Aaron

“…This is a relatively easy task when the user works with current conditions (interpolations historical observed data, representative of 1950-2000 climates) since the bioclimatic variables needed for the analysis can be directly downloaded from the WorldClim website. …”
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Ground and satellite based detection of rangeland management in per humid grasslands of Argentina por Kurtz, Ditmar Bernardo

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Mapping global cropland and field size por Fritz, Steffen, See, Linda, McCallum, Ian, You, Liangzhi, Bun A, Moltchanova E, Duerauer, M, Albrecht, F., Schill C, Perger C, Havlík, Petr, Mosnier, Aline, Thornton, Philip K., Wood-Sichra, Ulrike, Herrero, Mario, Becker-Reshef, Inbal, Justice, Chris, Hansen, Matthew, Gong, Peng, Abdel Aziz, Sheta, Ciprián, Arsenio, Cumani, Renato, Cecchi, G., Conchedda, Giulia, Ferreira S, Gómez, A., Haffani M, Kayitakire, Francois, Malanding, J, Mueller R, Newby T, Nonguierma A, Olusegun A, Ortner S, Rajak R, Rocha J, Schepaschenko, Dmitry, Schepaschenko, M., Terekhov A, Tiangwa, A., Vancutsem, C., Vintrou E, Wenbin W, Velde, Marijn van der, Dunwoody, A., Kraxner, Florian, Obersteiner, Michael

“…The first ever global field size map was produced at the same resolution as the IIASA-IFPRI cropland map based on interpolation of field size data collected via a Geo-Wiki crowdsourcing campaign. …”
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Simulation of soil organic carbon potential sequestration for high Andes Peruvian croplands por Carbajal Llosa, Carlos Miguel, Vera Vílchez, Jesús Emilio, Pizarro Carcausto, Samuel Edwin, Mestanza, Carlos

“…Soil organic carbon content and bulk density were spatially predicted across the study area using 100 georeferenced soil samples to quantify organic carbon stocks. Spatial interpolation was performed using Ordinary Kriging with exponential and spherical variogram models, which provided the best fit to the data. …”
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NDVI Response to Satellite-Estimated Antecedent Precipitation in Dryland Pastures por Brieva, Carlos Alberto, Saco, Patricia M., Sandi, Steven G., Mora, Sebastian, Rodríguez, José F.

“…Spatial correlations were calculated for GPM and CHIRPS estimates against interpolated gauged precipitation. We then estimated NDVI response to Antecedent Accumulated Precipitation (AAP) for 1, 3, 6, 9, and 12 months of four major vegetation types typical of the region. …”
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A flexible and practical approach for real-time weed emergence prediction based on Artificial Neural Networks por Chantre Balacca, Guillermo Ruben, Vigna, Mario Raul, Renzi Pugni, Juan Pablo, Blanco, Anibal Manuel

“…Field emergence data recorded on a weekly basis were used to generate RDE patterns through linear interpolation. Results for three study cases from the Semiarid Pampean Region of Argentina (Lolium multiflorum, Avena fatua and Vicia villosa), which show irregular and time-distributed field emergence patterns, are reported. …”
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Assessing spatial genetic structure from molecular marker data via principal component analyses: a case study in a Prosopis sp. fores por Teich, Ingrid, Verga, Anibal Ramón, Balzarini, Mónica Graciela

“…The maps obtained by the interpolation of sPC1 values allowed a better visualization of a patchy spatial pattern of genetic variability than the PC1 synthetic map. …”
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Soil fertility mapping and development of nutrient management zones in maize-based cropping system of the savanna zone of Nigeria por Peter, H.

“…Semivariogram parameters were used to determine the nature of soil fertility spatial variability and prediction maps produced using krigging interpolation methods. Farmers were divided into 3 categories based on quantities of fertilizer each applied. …”
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