Land Use/Land Cover Mapping of an Alpine Region Using Expert System Classification: a Case Study Of The Lhasa River Basin, Tibetan Plateau, China
In: Survey review, Band 43, Heft 321, S. 269-283
ISSN: 1752-2706
34 Ergebnisse
Sortierung:
In: Survey review, Band 43, Heft 321, S. 269-283
ISSN: 1752-2706
In: Natural hazards and earth system sciences: NHESS, Band 19, Heft 12, S. 2827-2839
ISSN: 1684-9981
Abstract. The site amplification factor was usually considered to be scalar values, such as amplification of peak ground acceleration or peak ground velocity, or increments of seismic intensity in the earthquake early warning (EEW) system or seismic-intensity repaid report system. This paper focuses on evaluating an infinite impulse recursive filter method that could produce frequency-dependent site amplification and compare the performance of the scalar-value method with the infinite impulse recursive filter method. A large number of strong motion data of IBRH10 and IBRH19 of the Kiban Kyoshin network (KiK-net) triggered in more than 1000 earthquakes from 2004 to 2012 were selected carefully and used to obtain the relative site amplification ratio; we model the relative site amplification factor with a casual filter. Then we make a simulation from the borehole to the surface and also simulate from the front-detection station to the far-field station. Compared to different simulation cases, it can easily be found that this method could produce different amplification factors for different earthquakes and could reflect the frequency-dependent nature of site amplification. Through these simulations between two stations, we can find that the frequency-dependent correction for site amplification shows better performance than the amplification factor relative to velocity (ARV) method and station correction method. It also shows better performance than the average level and the highest level of the Japan Meteorological Agency (JMA) earthquake early warning system in ground motion prediction. Some cases in which simulation did not work very well were also found; possible reasons and problems were analyzed and addressed. This method pays attention to the amplitude and ignores the phase characteristics; this problem may be improved by the seismic-interferometry method. Frequency-dependent correction for site amplification in the time domain highly improves the accuracy of predicting ground motion in real time.
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 175, S. 74-82
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 25, Heft 29, S. 29026-29037
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 150, S. 168-175
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 23, Heft 15, S. 15351-15357
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 28, Heft 20, S. 25432-25441
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 180, S. 146-151
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 148, S. 892-900
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 24, Heft 21, S. 17566-17576
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 23, Heft 18, S. 18524-18532
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 245, S. 114111
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 226, S. 112873
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 206, S. 111210
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 138, S. 92-97
ISSN: 1090-2414