... Updated Prefecture Points now have mostly complete spatial coverage for the Dynastic administrative units from 1350 - 1911 CE. Prefectures from earlier periods, 221 BCE to 1350 CE, still have gaps in spatial coverage.
... Updated Prefecture Polygons now have mostly complete spatial coverage for the Dynastic administrative units from 1350 - 1911 CE. Prefectures from earlier periods, 221 BCE to 1350 CE, still have gaps in spatial coverage.
Contributors: Prussia. Landesaufnahme. Kartographische Abteilung.
... These detailed maps compiled by the Royal Prussian Land Survey provide a unique view of the North China landscape of a century ago, showing the built-up areas, or footprints, of settlements from walled cities down to small villages. Digital scanned images of these maps have been prepared for research on historical land use change. Original citation from UC Berkeley map library: Karte von Tschili und Schantung / Bearbeitet in der Kartogr. Abteilung der Kgl. Preuss. Landesaufnahme, 1907. 63 maps : col. ; 37 x 44 cm. + 1 index map. Earth Sci G7823.S4 s200.P7 Case D
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Contributors: Arbués, Ignacio , Ledo, Ramiro, Matilla-García, Mariano
... There are a number of econometrics tools to deal with the different types of situations in which cointegration can appear: I(1), I(2), seasonal, polyno- mial, etc. There are also different kinds of Vector Error Correction models related to these situations. The authors propose a unified theoretical and practical framework to deal with many of these situations. To this aim: (i) they introduce a general class of models and (ii) provide an automatic method to identify models, based on estimating the Smith form of an autoregressive model. Their simulations suggest the power of the new proposed methodology. An empirical example illustrates the methodology.
Contributors: Skinner, G. William, Tsunetoshi Mizoguchi, Henderson, Mark
... City Systems of early Meiji Japan, including Regional City Systems (around higher-order cities) and, nested within them, Greater City Systems (around mid-level cities, according to the central place analysis represented in the JapanT dataset).
Contributors: Mark Henderson
... The 1904-07 Prussian maps show the footprints of settlements including the outlines of city walls. Small areas around each capital in the ChinaW file were clipped from the georeferenced maps. Filenames contain the ChinaW ID number for each city.
Contributors: Da Silva, Mayesse, Monserrate, Fredy, Valencia, Jefferson, Quintero, Marcela, Jarvis, Andy
... Digital soil property maps were generated at 30 meters resolution for the West of Honduras in order to develop the AGRI v.1 tool (Monserrate et al., 2016). AGRI (from its Spanish words AGua para RIego) is a tool that combines information about climate, relief, soils, land cover, and hydrology to identify suitable water sources for implementing small irrigation projects. The soil properties mapped were sand (%), silt (%), clay (%), texture class, field capacity (v/v), wilting point (v/v), water holding capacity (v/v), and curve numbers. A database of 1887 points from González et al. (2008) were used to generate the maps of sand, silt, and clay. This database was also used to determine field capacity, wilting point and water-holding capacity for each point by applying pedotransfer functions according to Saxton & Rawls (2006). A regression kriging approach was performed by combining 80% of point data with the terrain attributes aspect, mid-slope position, normalized height, plan and profile curvature, slope and topographic wetness index generated from a digital elevation model SRTM of 30 meters resolution. The combination of sand, silt, and clay maps resulted on texture class map. The curve number was mapped using the texture and land cover maps according to Soil Conservation Service of the United States of America (USDA-SCS, 1985). The maps performance was evaluated by the normalized root mean square error (RMSEn) expressed in percentage and using 20% of data point not used for mapping. Clay, sand, silt, field capacity, water holding capacity and wilting point presented error of 16%, 17%, 13%, 19%, 10% and 18% respectively.
Contributors: Baum-Snow, Nathaniel, Brandt, Loren, Henderson, J. Vernon, Turner, Matthew, Zhang, Qinghua
... Review of Economics and Statistics: Forthcoming
Contributors: Finkbeiner, Douglas, Schlegel, David J., Davis, Marc
... The Schlegel, Finkbeiner & Davis map of interstellar dust. ApJ 500, 525
Contributors: Partidos Políticos do Brasil
... Partidos Políticos do Brasil, Diretórios, Executiva, Membros, Eleitorado, Eleições, Votos,