EUMETSAT Global AVHRR Wind Product

Solar Wind: Global Properties

The most fundamental problem in solar system research is still unsolved: how can the Sun with a surface temperature of only 5800 K heat up its atmosphere to more than a million K? In fact, the solar atmosphere is so hot that not even the Sun’s enormous gravity can contain it. Part of it is continuously evaporating into interplanetary space: the SOLAR WIND. As a highly ionized magnetized plasma ...

On global (strong) defensive alliances in some product graphs

A defensive alliance in a graph is a set $S$ of vertices with the property that every vertex in $S$ has at most one moreneighbor outside of $S$ than it has inside of $S$. A defensive alliance $S$ is called global if it forms a dominating set. The global defensive alliance number of a graph $G$ is the minimum cardinality of a global defensive alliance in $G$. In this article we study the global ...

Evaluation of global wind power

[1] The goal of this study is to quantify the world’s wind power potential for the first time from data. Wind speeds are calculated at 80 m, the hub height of modern, 77-m diameter, 1500 kW turbines. Since relatively few observations are available at 80 m, the Least Square extrapolation technique is utilized and revised here to obtain estimates of wind speeds at 80 m given observed wind speeds ...

An update on EUMETSAT programmes and plans

The Eumetsat Multi-sensor Precipitation Estimate (mpe)

The combination of measurements from different satellite instruments for the estimation of precipitation is a promising way to overcome the shortcomings of measurements from a single data source. EUMETSAT realised the Multi-sensor Precipitation Estimate (MPE) in order to combine the advantages of the high temporal and comparably high spatial resolution of a geostationary IR sensor with the high...