Showing papers in "Global and Planetary Change in 2007"

TL;DR: The sediment load delivered from the Huanghe (Yellow River) to the sea has decreased sharply to 0.15×10 9 metric tons per year (0.15 Gt/yr) between 2000 and 2005, and now represents only 14% of the widely cited estimate of 1.08 Gt per year as discussed by the authors.

TL;DR: In this paper, a correction technique is proposed in order to adjust the simulated values according to the observed ones, which is useful to feed impact models which are sensitive to threshold values, but the correction does not reduce, and may enhance in some cases, the uncertainty about the climate projections.

TL;DR: In this paper, an analysis of precipitation and temperature trends and a GIS-supported investigation of the related glacier change in the mountain ridges Zailiyskiy and Kungey Alatau, which represent an important part of the northern Tien Shan.

TL;DR: In this paper, the potential response of rockglacier creep to a change in surface temperature is simulated using a one-dimensional thermomechanically coupled numerical model, and the authors conclude that increasing rock glacier temperatures may lead to a marked, but both spatially and temporally highly variablespeed-up, before asignificantlossoficecontentbymelt-outisabletoreducethedeformationrateofthefrozenmasstowardsits

TL;DR: A post-extinction calcimicrobial unit formed during the flooding of the Permian skeletal carbonate platform that took place during the earliest Triassic was shown in this article.

TL;DR: In this article, mean-sea-level data from coastal tide gauges in the north Indian Ocean were used to show that low-frequency variability is consistent among the stations in the basin, and statistically significant trends obtained from records longer than 40 years yielded sea-level-rise estimates between 1.06-1.75 mm yr -1, with a regional average of 1.29 mm yr −1, when corrected for global isostatic adjustment (GIA) using model data.

TL;DR: In this article, the authors measured the economic impact of climate on crops in Kenya using cross-sectional climate, hydrological, soil, and household level data for a sample of 816 households, and uses a seasonal Ricardian model.

TL;DR: In this article, the analysis of mean annual air temperatures measured at 52 meteorological stations within and near the East-Siberian transect during the period from 1956 through 1990 demonstrates a significant and statistically significant (at 0.05 level) positive trend ranging from 0.065 to 0.59°C/10yr.

TL;DR: In this article, a dedicated GPS processing strategy is implemented to correct the tide gauges records, and thus to obtain a GPS-corrected set of absolute or geocentric sea-level trends.

TL;DR: A Digital Elevation Model (DEM) derived from regular cartography compiled by Instituto Geografico Militar of Chile (IGM) based upon 1974/1975 aerial photographs and a DEM generated from Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) satellite images acquired in September 2001 was used to update the available glacier inventory of the Campo de Hielo Patagonico Norte (CHN) or Northern Patagonia Icefield, Chile between 1975 and 2001.

TL;DR: In this article, the authors used the database from national glacier inventories in the European Alps and the Southern Alps of New Zealand (hereinafter called the New Zealand Alps), which contain for the time of the mid-1970s a total of 5154 and 3132 perennial surface ice bodies, covering 2909 km2 and 1139 km2 respectively, and applies to the mid 1970s.

TL;DR: In this paper, a statistical, remote sensing-based approach was proposed to estimate the probability of catastrophic flooding of moraine-dammed lakes in the southern Coast Mountains of British Columbia, Canada.

TL;DR: The Spanish Central System is a Cenozoic pop-up with an E-W to NE-SW orientation that affects all the crust (thick-skinned tectonics) as mentioned in this paper.

TL;DR: In this article, the authors used the Global Daily Climatology Network and a new Global Synoptic Data Network archive, GSDN, created jointly by U.S. National Climatic Data Center and Russian Research Institute for Hydrometeorological Information.

TL;DR: In this paper, the general features of alpine permafrost such as spatial distribution, temperatures, ice content, permafur and active layer thickness within the Tien Shan Mountains, Central Asia are described.

TL;DR: In this paper, a digital 3D reconstruction of the Baltic ice lake configuration during the termination of the Younger Dryas cold phase (ca. 11700 cal. yr BP) was performed using a combined bathymetric-topo...

TL;DR: In this article, an empirical relationship between precipitation and temperature at the steady-state equilibrium line altitude (ELA0) is derived from direct glaciological mass balance measurements, using geographical information systems (GIS) and a digital elevation model, which is then applied over a spatial domain, to a so-called distributed modelling of the regional climatic ELA0 and the climatic accumulation area (cAA) of 1971-1990 over the entire European Alps.

TL;DR: In this paper, the authors focused on the northern Upper Rhine Graben (URG), which experienced low tectonic deformation and multiple climate changes during Quaternary times.

TL;DR: In this article, an approach to reconstruct the development of fire events based on active fire detections from MODIS is presented, where individual fire events are clustered within a GIS environment based on a set of rules determining proximity between fire observations in space and time.

TL;DR: In this paper, the authors investigated the possibilities and limitations of using Regional Climate Model (RCM) output for the simulation of alpine permafrost scenarios, focusing on the general problem of scale mismatch between RCMs and impact models and, in particular, the special challenges that arise when driving an impact model in topographically complex high-mountain environments with the output of an RCM.

TL;DR: In this article, a model of glacier response to climate change for the European Alps quantifies expected changes in the spatial distribution of glaciers as a response to temperature and precipitation trends, and predicts drastic losses of ice area and volume.

TL;DR: In this article, the authors present a crustal folding or buckling mechanism to explain the rootless 3-5-km high Alborz Mountains in northern Iran as well as ∼ 10-km of Late Miocene to recent subsidence in the south Caspian basin and ∼ 3-6-km in the central Iranian basin in the context of the middle Miocene-to-recent Arabia-Eurasia collision.

TL;DR: In this article, a comparison and compilation of lichenometric and geomorphic studies performed by two independent teams in the Cordillera Blanca, Peru, in 1996 and 2002 on 66 “Little Ice Age” moraines of 14 glaciers is presented.

TL;DR: In this article, the authors developed an automated and simple but robust approach that is based on an empirical relationship between glacier size and the steady-state accumulation area ratio (AAR 0 ) in the Alps.

TL;DR: In this paper, the authors investigated the cause and mechanism of the extreme environmental conditions that prevailed during the period of extinction and subsequent recovery of the Late Permian-Early Triassic biota.

TL;DR: In this paper, the extinction pattern of the flora interpreted from megafloral and palynomorph data is demonstrated by a sudden decline of species numbers at the PTB after a long-term gradual changes, followed by a delayed extinction in the basal Triassic.

TL;DR: In this paper, the authors used a high-resolution data set (grid data: 10' for latitude/longitude) of mean monthly air surface temperature and precipitation to determine the mean annual 0 degrees C isotherm altitude of the Peruvian and Bolivian glaciers from 5 to 20 degrees S.

TL;DR: In this paper, the authors examined the mountain permafrost lower limit on slopes with the same aspect in the Khumbu Himal using ground-temperature measurements, and they found that the lower limit was 5400-5500m in 2004.

TL;DR: The dates of recession of eleven outlet glaciers of the Hielo Patagonico Norte (Northern Patagonian Icefield) from their recent maximum positions have been inferred from dendrochronology, lichenometry, radiocarbon dating and historical sources as discussed by the authors.

TL;DR: In this paper, the authors analyzed the Andean glaciers' behavior in the context of the observed climate changes by comparing Digital Elevation Models (DEMs) computed at three different dates throughout the last four decades.