International Geomagnetic Reference Field: The Sixth Generation.

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

NOAA/NGDC candidate models for the 11th generation International Geomagnetic Reference Field and the concurrent release of the 6th generation Pomme magnetic model

The International Geomagnetic Reference Field (IGRF) is updated every five years based on candidate model submissions by research institutions worldwide. In the call for the 11th generation of IGRF, candidates were requested for the definitive main field in 2005, the predicted main field in 2010, and the predicted secular variation from 2010 to 2015. The NOAA/NGDC candidate models for IGRF-11 w...

متن کامل

Advances in Modeling the Generation of the Geomagnetic Field

DYNAMO is the first simulation code to dynamically and self-consistently model the evolution of the geomagnetic field. In this paper, we present the results of recent efforts to parallelize and optimize this pseuodospectral code for massively parallel architectures. On the Cray T3E, these modifications have resulted in a sustained performance of well-over 100 Gflops, representing more than a 10...

متن کامل

Predicting the Multifractal Geomagnetic Field

The geomagnetic field at the Earth’s surface is determined by a large number of current sources, internal and external, which vary at overlapping time scales. As a result, the time variation of the field, ranging from nHz to tens of Hz, can be modeled as a multifractal whose properties depend on frequency and activity level, with the latter being largely determined by the external driving due t...

متن کامل

Geomagnetic field behavior during the Iceland Basin and Laschamp geomagnetic excursions: A simple transitional field geometry?

[1] We present four new records of the Iceland Basin Excursion (IBE) and five new records of the Laschamp Excursion (LE) obtained from rapidly deposited marine sediments in the North Atlantic Ocean, the Nordic Seas, the Gulf of Mexico, the South China Sea, and the southern Indian Ocean. Marked minima in relative paleointensity correspond with the paleomagnetic directional changes associated wit...

متن کامل

the Sixth International Workshop on Languages

The notion of isolating the \common case" is a well known computer science principle. This paper describes ZPL, a language that treats data parallelism as a common case of MIMD parallelism. This separation of concerns has many bene ts. It allows us to de ne a clean and concise language for describing data parallel computations, and this in turn leads to e cient parallel execution. Our particula...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of geomagnetism and geoelectricity

سال: 1992

ISSN: 0022-1392

DOI: 10.5636/jgg.44.679