... deployed at the state level in Illinois, Oklahoma, North Carolina, Nebraska, and Texas. These climatic networks provide, at a diversity of locations, hourly or daily estimates of soil moisture. Comparable hourly estimates have been delivered by the USDA’s Soil Climate Analysis Network (SCAN) beginning...

... availability. Although modeling approaches have been used to assess the impacts of those parameters on SMSP, they have led to inconsistent findings. In this study, soil moisture data from Utah (5 yr) and the US Southeast (2 yr) were obtained from the Soil Climate Analysis Network (SCAN), along with estimated...

... and time variable radiative transfer parameters were estimated. Moreover, it was possible to estimate a “bias” term when model simulations show a systematic difference as compared to observations. An application to a USDA-NRCS Soil Climate Analysis Network (SCAN) site showed the good performance...

... the 2012 drought. The first analysis performed for all stations in the network determined if there was a national signal for soil moisture during the 2012 drought. Stations were then grouped into their respective nine conterminous US climate regions ( Karl and Koss, 1984 ) for further study ( Fig. 1...

... Systems, Inc.) was used by the USDA NRCS Soil Climate Analysis Network (SCAN, Schaefer et al., 2007 ). This SCAN experience and the robust scientific analysis of the instrument ( Seyfried et al., 2005 ; Seyfried and Grant, 2007 ) were important in its choice by the USCRN Program. The configuration...

... Analysis Network ( Schaefer et al., 2007 ), NOAA Climate Reference Networks ( Palecki and Groisman, 2011 ), and the other networks used during the CANEX-SM10 campaign ( Magagi et al., 2013 ; Champagne et al., 2010 ). The placement of these sensors in the mineral soil is necessary to allow proper contact...

..., form, with international partners, a global network of CZOs for soils and related research, and design a future experiment to quantify soil processes and rates along global environmental gradients of climate, lithology, and land use. To test our hypotheses, we have commenced a study of soil...

...Gregory J. Retallack Abstract The main factors controlling fluvial systems are time, initial topographic relief, geology, climate, vegetation, base level, upland runoff, upland drainage network, hillslope morphology, downstream deliveries, channel behavior, and pattern of deposition. Similar...

... Program RMSE, root mean square error SAI, stem area index SCAN, Soil Climate Analysis Network Drought is a recurring natural hazard that causes billions of dollars in loss every year. The latest drought of 2012 alone, that covered more than 80% of the United States, caused approximately $30...

... ( Hollinger and Isard, 1994 ). Other state and national networks developed shortly thereafter, including the Oklahoma Mesonet ( McPherson et al., 2007 ; Illston et al., 2008 ) and the USDA Soil Climate Analysis Network ( Schaefer et al., 2007 ), which both utilized automated sensors recording data...

... of biological activity in soil, this new formulation enables us to calibrate and test the model with field-generated biological data. Our results are useful for predicting sediment yield to channel networks as well as interpreting and predicting morphologic response to tectonic and climatic perturbations...

... help to establish architectural models with more general application to basin analysis. The process of toe-cutting can lead to complete fan destruction and may be a response to climate change, tectonic tilting, fault propagation or a combination of these variables. It gives rise to: near horizontal...

... areas with homogeneous bedrock lithology. The tectonic stability and the low climatic variability of the region allowed effective study of the lithologic control on the drainage network. The very simple tool of monofractal analysis used, the box-counting dimension, has allowed identification...

... across soil types. Finally, a sensitivity analysis of the OMF in relation to the D p and pore-network tortuosity ( T ) showed a reduction in D p and increase in T with increasing OMF under the same ε conditions. In addition to the Millington and Quirk (1961) model, the water-induced linear reduction...

... and profiles are controlled by (1) previous permeability networks of the affected formation, (2) balance and interaction of climatic, biologic, and hydrologic environments that enhance or reduce these permeability networks, and (3) timing, rate, and succession of environments, and stages of evolution. Karst...

... and runways. Thaw settlement and soil consolidation promote embankment subsidence and the development of cracks, potholes, and depressions in road pavement. In this study, we investigate highway stability in permafrost terrain at an experimentally built road embankment near Beaver Creek, Yukon. A network...

... with poorly connected macropores simultaneously loses water from all pore sizes. The T 2 peak decomposition analysis can be extended to the field scale to track rock moisture partitioning in the pore network. This capability has implications for documenting critical zone processes, including quantifying water...

...Dik Fandeur; Farid Juillot; Guillaume Morin; Luca Olivi; Andrea Cognigni; Jean-Paul Ambrosi; François Guyot; Emmanuel Fritsch Abstract In New Caledonia, the weathering of ultamafic rocks under a tropical climate has led to the residual accumulation of trace elements in lateritic soils widely...