gravity recovery and climate experiment (grace) satellite gravimetry mission launched in march 2002 based on its twin gravimetric satellites makes application of both high-low (hl) and law-low (ll) gravimetric techniques possible. the ll is based on satellite-to-satellite tracking (sst) via the one way two frequencies k-band-ranging between the two grace satellites. as a result of combination o...

ooking back, the signs were there for several years. Grandma Blanche started misplacing her keys and wallet in her early 50s. Having lived through the Great Depression, my grandma would hide money around the house rather than have it all deposited in a bank. The problem was she would forget where she hid it. I can remember my mother going through every inch of Grandma’s house one day and collec...

The language Grace is being proposed for specifying and programming in a graph-centered environment based on graph transformation. Emphasis in the design of Grace is laid on modular structur-ing of programs. In this paper we present a simple kind of modules for the language which encapsulate rules and graph transformation units, and export some of them. The local transformation units deene comp...

the military hopsitals of India. Those whose niemoiies of India carry them hack to the year 1888 will not forget the arrival of the nursing sisters and the difference which they made in the comforts of the station hospitals in India. The little book is edited by Surgeon-General A F. Bradshaw, CB, who will be remembered bv many as P. M. O. in Rawal Pindi, and afterward as P. M. 0., H. M.'s Force...

The vertical motion of the Earth’s surface is dominated by hydrologic cycle on a seasonal scale. Accurate land deformation measurements can provide constructive insight into regional geophysical process. Although Global Positioning System (GPS) delivers relatively accurate measurements, GPS networks are not uniformly distributed across globe, posing challenge to obtaining information in data-sp...

Continuous observations of temporal variations in the Earth's gravity field have recently become available at an unprecedented resolution of a few hundreds of kilometers. The gravity field is a product of the Earth's mass distribution, and these data-provided by the satellites of the Gravity Recovery And Climate Experiment (GRACE)-can be used to study the exchange of mass both within the Earth ...