TUE-MN , LHE


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. 518s 439s 373s 316s 268s 228s 193s 164s 139s 118s 100s 85s 72s 61s 52s 44s 37s 32s 27s 23s 19s 16s 14s 12s 10s
202605 LHE AR 40 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999
202604 LHE AR 717 -147 -148 -150 -151 -153 -155 -156 -158 -160 -161 -162 -164 -165 -167 -168 -169 -170 -171 -170 -170 -166 -161 -157 -156 -156
202603 LHE AR 744 -151 -153 -154 -156 -158 -160 -161 -162 -164 -164 -167 -167 -169 -170 -171 -172 -172 -172 -170 -167 -161 -154 -149 -150 -152
202602 LHE AR 672 -149 -151 -152 -153 -155 -157 -158 -160 -162 -163 -165 -166 -168 -168 -170 -171 -171 -172 -170 -168 -162 -156 -152 -152 -151
202601 LHE AR 744 -144 -146 -148 -150 -152 -154 -155 -158 -159 -160 -162 -163 -165 -165 -167 -168 -169 -170 -169 -167 -162 -158 -154 -153 -151
202512 LHE AR 725 -141 -143 -145 -146 -148 -150 -152 -153 -155 -157 -158 -159 -161 -162 -163 -164 -166 -166 -166 -164 -159 -153 -150 -151 -151
202511 LHE AR 712 -141 -142 -144 -145 -147 -148 -150 -151 -153 -154 -156 -158 -159 -160 -162 -163 -164 -165 -166 -166 -162 -159 -156 -154 -153
202510 LHE AR 743 -142 -143 -145 -147 -148 -149 -151 -152 -154 -156 -157 -158 -160 -161 -162 -164 -165 -166 -167 -167 -165 -162 -158 -156 -156
202509 LHE AR 720 -144 -146 -147 -148 -150 -151 -153 -155 -156 -158 -160 -161 -163 -164 -166 -167 -168 -169 -170 -170 -168 -165 -161 -157 -157
202508 LHE AR 744 -152 -153 -154 -157 -158 -159 -161 -162 -163 -164 -166 -167 -168 -169 -171 -172 -172 -172 -172 -171 -167 -162 -163 -163 -159
202507 LHE AR 740 -151 -153 -155 -158 -161 -162 -165 -165 -167 -168 -170 -171 -172 -173 -174 -175 -175 -175 -173 -172 -168 -165 -166 -167 -163
202506 LHE AR 720 -153 -155 -157 -159 -162 -163 -164 -166 -166 -168 -170 -171 -172 -174 -175 -176 -177 -176 -174 -174 -169 -164 -165 -166 -163
202505 LHE AR 744 -150 -151 -153 -155 -157 -158 -160 -161 -163 -165 -166 -168 -170 -171 -172 -174 -175 -175 -173 -172 -168 -165 -165 -162 -159
202504 LHE AR 720 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202503 LHE AR 742 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202502 LHE AR 672 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10
202501 LHE AR 743 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10