[1] A long-standing challenge for hydrologists has been a lack of observational data on global-scale basin hydrological behavior. With observations from NASA's Gravity Recovery and Climate Experiment (GRACE) mission, hydrologists are now able to study terrestrial water storage for large river basins (>200,000 km2), with monthly time resolution. Here we provide results of a time series model of ...

The study figures out the potential of CASI airborne hyperspectral imagery for the fine segmentation and characterization of small size landscape units, the hedges, essential for hydrologists and landscape planners. The segmentation strategy consists in computing every hedge discriminating feature : radiometry, texture and linear shape. Original methods taking into consideration the full spectr...

This paper addresses the following open question: What set of error metrics for satellite rainfall data can advance the hydrologic application of new-generation, high-resolution rainfall products over land? The authors’ primary aim is to initiate a framework for building metrics that are mutually interpretable by hydrologists (users) and algorithm developers (data producers) and to provide more...

We present a method to assess the possible conflict of beliefs in ontologies. Those beliefs represent for example the assessment of an ontology in regard to some goal, i.e. hydrologists may assess a flooding ontology only with maximum flood protection in mind where a politician considers more monetary issues. These different beliefs lead to different interpretations or semantics of the ontology...

Complaints about stream and sewer flooding have been increasing. Many departments need to do accurate stormwater calculations but have lacked affordable and useful software tools. Hydrologists and engineers usually calculate stormwater data for watersheds (i.e., drainage areas); the majority of a local government’s work is based on individual parcels and addresses. Quantifying stormwater in a f...

“Kriging” is the name of a parametric regression method used by hydrologists and mining engineers, among others. Features of the kriging approach are that it also provides an error estimate and that it can conveniently be employed also to estimate the integral of the regression function. In the present work, the kriging method is described and some of its statistical characteristics are explore...

The ever-increasing availability of new remote sensing and land surface model datasets opens new opportunities for hydrologists to improve flood forecasting systems. The current study investigates the performance of two operational soil moisture (SM) products provided by the “EUMETSATSatellite Application Facility in Support of Operational Hydrology and Water Management” (H-SAF, http://hsaf.met...