data download service (WFS) from: Strategic Noise Map Type A Lden Departmental Network
收藏资源简介：
Strategic noise map of type A Lden — Isophone curves in areas exposed to noise. These curves show areas of the same sound level and are plotted by 5 dB(A) steps from the threshold of 55 dB(A) in Lden. c_HR_noise_routes_affected_RD_Labels C_N_COMMUNE_BDC_068_ Tags c_HR_noise_routes_affected_RD C_Chef Place_ARR_Point_Labels C_Colmar_Point_Labels C_N_COMMUNE_BDC_068 C_Colmar_Point C_Reseau_Dep_CarteA_Lden_Values_Class_Noise C_Zones_Urbaines C_Chef Place_ARR_Point
A类Lden（等效昼夜噪声级）战略噪声地图——噪声暴露区域的等声级线。此类等声级线标示出声级一致的区域，以Lden标准下的55dB(A)为起始阈值，按5dB(A)的步长绘制。 c_HR_noise_routes_affected_RD_Labels C_N_COMMUNE_BDC_068_ Tags c_HR_noise_routes_affected_RD C_Chef Place_ARR_Point_Labels C_Colmar_Point_Labels C_N_COMMUNE_BDC_068 C_Colmar_Point C_Reseau_Dep_CarteA_Lden_Values_Class_Noise C_Zones_Urbaines C_Chef Place_ARR_Point
