K26A-TA , LHZ


Noise Levels at Different Periods

The table below gives the decibel 10% noise level (in db) for each month in several period bands. The 10% noise level is defined as the signal level not exceeded 10% of the time, based on hourly measurements. Each entry in the table is color coded with reference to the New Low Noise Model (NLNM, Peterson, 1993):
navy, -6 db < value-NLNM < -3 db
blue, -3 db < value-NLNM < 3 db
aqua, 3 db < value-NLNM < 6 db
lime, 6 db < value-NLNM < 9 db
yellow, 9 db < value-NLNM < 12 db
orange, 12 db < value-NLNM < 15 db
red, 15 db < value-NLNM < 20 db
fuchsia, 20 db < value-NLNM < 25 db
silver, value-NLNM < -6 db, value-NLNM > 25 db

Black indicates that there was an insufficient number of hourly measurements to calculate a noise level.


Noise levels (PSD) in decibels
Month Chan. Qual. # obs. 268s 228s 193s 164s 139s 118s 100s 85s 72s 61s 52s 44s 37s 32s 27s 23s 19s 16s 14s 12s 10s
201010 LHZ AR 55 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999
201009 LHZ AR 716 -178 -180 -180 -181 -181 -181 -181 -182 -182 -182 -182 -181 -179 -178 -174 -169 -162 -156 -156 -156 -154
201008 LHZ AR 744 -177 -179 -180 -180 -181 -181 -181 -181 -182 -182 -182 -181 -179 -178 -175 -170 -163 -158 -159 -160 -154
201007 LHZ AR 744 -178 -180 -180 -181 -181 -181 -181 -182 -182 -182 -182 -181 -180 -178 -175 -172 -164 -158 -159 -161 -156
201006 LHZ AR 720 -179 -181 -181 -181 -181 -181 -182 -182 -183 -183 -182 -181 -180 -178 -175 -171 -163 -159 -159 -160 -155
201005 LHZ AR 744 -182 -182 -181 -181 -181 -181 -181 -182 -182 -182 -182 -181 -179 -178 -174 -170 -163 -158 -159 -158 -153
201004 LHZ AR 695 -181 -182 -182 -182 -182 -181 -181 -182 -182 -182 -182 -181 -180 -178 -175 -171 -163 -157 -154 -152 -149
201003 LHZ AR 744 -176 -177 -178 -179 -178 -179 -179 -180 -181 -181 -181 -180 -179 -177 -174 -169 -162 -155 -152 -152 -146
201002 LHZ AR 671 -176 -177 -178 -178 -179 -179 -180 -180 -181 -182 -182 -181 -180 -178 -175 -170 -163 -156 -152 -151 -150
201001 LHZ AR 694 -176 -176 -177 -177 -178 -178 -179 -179 -180 -180 -180 -179 -178 -176 -173 -169 -161 -154 -149 -148 -147
200912 LHZ AR 693 -174 -174 -175 -175 -176 -177 -178 -179 -179 -180 -180 -179 -178 -177 -174 -170 -161 -154 -150 -148 -147
200911 LHZ AR 500 -175 -175 -176 -177 -177 -177 -178 -179 -180 -180 -180 -179 -178 -177 -174 -171 -164 -156 -152 -150 -149
200910 LHZ AR 744 -176 -177 -179 -178 -179 -180 -180 -180 -181 -181 -181 -180 -178 -176 -173 -168 -161 -157 -155 -155 -151
200909 LHZ AR 720 -178 -179 -180 -181 -181 -181 -181 -182 -182 -182 -182 -181 -179 -177 -174 -170 -163 -159 -158 -156 -153
200908 LHZ AR 738 -177 -179 -180 -180 -181 -181 -181 -182 -182 -182 -182 -181 -179 -178 -175 -172 -165 -160 -159 -161 -158
200907 LHZ AR 744 -178 -179 -180 -180 -181 -181 -181 -182 -182 -183 -182 -181 -180 -178 -175 -172 -166 -160 -158 -160 -158
200906 LHZ AR 671 -179 -181 -181 -182 -182 -182 -182 -183 -184 -184 -183 -182 -181 -179 -176 -173 -165 -159 -158 -162 -156
200905 LHZ AR 718 -180 -181 -182 -182 -182 -182 -183 -183 -183 -184 -183 -182 -180 -179 -175 -172 -165 -159 -160 -161 -157
200904 LHZ AR 694 -179 -180 -181 -181 -181 -181 -182 -182 -183 -183 -183 -182 -180 -178 -175 -172 -164 -158 -158 -157 -154
200903 LHZ AR 730 -178 -180 -179 -179 -180 -179 -180 -180 -181 -181 -181 -180 -179 -177 -174 -171 -164 -157 -154 -153 -151
200902 LHZ AR 672 -175 -176 -177 -177 -177 -178 -179 -180 -180 -180 -181 -180 -179 -177 -174 -170 -162 -156 -153 -153 -149
200901 LHZ AR 744 -173 -173 -175 -175 -176 -177 -178 -178 -179 -179 -179 -179 -177 -176 -173 -169 -162 -156 -152 -151 -150
200812 LHZ AR 744 -176 -176 -177 -177 -177 -178 -179 -179 -180 -180 -180 -179 -177 -176 -173 -170 -162 -155 -153 -152 -151
200811 LHZ AR 311 -177 -178 -179 -179 -179 -180 -181 -181 -181 -181 -181 -180 -179 -177 -175 -172 -166 -157 -151 -149 -151