空间相关的地震动强度分布模拟库
Project description
SpatialIM
SpatialIM是一个用于空间相关的烈度分布模拟的Python库,基于C++实现,提供高效的地震烈度模拟计算。
系统要求
- Windows 64位操作系统
- Python 3.12
安装
pip install spatialim
使用示例
import spatialim
# 设置参数
lon_0, lat_0 = -122.320011, 37.963314 # 震中经纬度
M = 7.0 # 震级
N_sim = 100 # 模拟次数
seed = 42 # 随机数种子
W = 20.0 # 断裂面宽度(km)
length = 50.0 # 断裂面长度(km)
normal_x, normal_y, normal_z = 0.318, 0.214, 0.1395 # 法线方向
lambda_angle = 0 # rake角度(度)
Fhw = 1 # hanging wall效应
Zhyp = 15.0 # 震源深度(km)
region = 1 # 区域(1=加州)
nPCs = 10 # 主成分数
# 创建地震源对象
eqs = spatialim.EQSource_CB14PCA(lon_0, lat_0)
eqs.set_seed(seed)
eqs.set_W(W)
eqs.set_length(length)
eqs.set_RuptureNormal(normal_x, normal_y, normal_z)
eqs.set_lambda(lambda_angle)
eqs.set_Fhw(Fhw)
eqs.set_Zhyp(Zhyp)
eqs.set_region(region)
eqs.set_nPCs(nPCs)
# 注册场地
# eqs.register_site(ID, lon, lat, elevation_km, T0, Vs30, Z25)
eqs.register_site(1, -122.26, 37.87, 0.0, 0.2, 250.0, 0.51)
# 模拟烈度
magnitudes = [M] * N_sim
eqs.simulate_intensities(magnitudes)
# 保存结果
eqs.save_im("intensity_results.txt")
eqs.save_xy("site_coordinates.txt")
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