XPFO-II , LH2-70


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
202209 LH2-70 AR 150 -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
202208 LH2-70 AR 717 -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
202207 LH2-70 AR 736 -174 -177 -178 -178 -179 -178 -178 -178 -178 -177 -178 -179 -181 -182 -182 -182 -181 -181 -178 -171 -163 -158 -159 -161 -156
202206 LH2-70 AR 389 -176 -177 -180 -180 -180 -180 -180 -180 -179 -179 -180 -181 -182 -183 -183 -183 -182 -181 -180 -174 -164 -158 -158 -160 -154
202106 LH2-70 AR 63 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999
202105 LH2-70 AR 742 -175 -177 -178 -180 -180 -180 -180 -179 -179 -179 -179 -180 -181 -182 -182 -182 -181 -180 -177 -171 -162 -155 -155 -157 -152
202104 LH2-70 AR 708 -175 -177 -178 -179 -180 -180 -179 -179 -179 -178 -179 -180 -181 -182 -182 -182 -181 -180 -176 -170 -160 -155 -156 -157 -151
202103 LH2-70 AR 739 -172 -174 -176 -178 -179 -180 -180 -179 -179 -179 -179 -180 -181 -181 -181 -181 -180 -179 -176 -170 -161 -155 -154 -155 -150
202102 LH2-70 AR 670 -171 -175 -176 -178 -179 -180 -180 -179 -179 -179 -179 -180 -181 -181 -181 -181 -180 -178 -176 -171 -162 -155 -152 -152 -150
202101 LH2-70 AR 742 -171 -174 -176 -178 -179 -179 -179 -178 -177 -177 -177 -178 -179 -180 -180 -179 -178 -177 -174 -166 -155 -149 -149 -149 -138
202012 LH2-70 AR 744 -174 -176 -177 -178 -180 -179 -179 -179 -178 -178 -178 -179 -180 -181 -181 -180 -179 -178 -175 -169 -159 -152 -151 -151 -143
202011 LH2-70 AR 715 -175 -177 -179 -180 -181 -180 -180 -180 -179 -179 -179 -180 -181 -181 -182 -181 -180 -179 -177 -172 -163 -156 -153 -154 -151
202010 LH2-70 AR 742 -177 -178 -179 -180 -181 -180 -180 -180 -179 -179 -179 -180 -181 -182 -182 -182 -181 -180 -178 -174 -166 -159 -156 -156 -154
202009 LH2-70 AR 701 -177 -179 -180 -180 -180 -180 -180 -179 -179 -179 -179 -180 -181 -182 -182 -182 -181 -180 -178 -172 -163 -156 -156 -157 -154
202008 LH2-70 AR 742 -176 -178 -179 -180 -180 -180 -180 -180 -179 -179 -179 -180 -182 -183 -183 -183 -182 -181 -179 -175 -166 -160 -159 -160 -157
202007 LH2-70 AR 740 -175 -177 -178 -178 -179 -179 -179 -179 -179 -178 -179 -180 -181 -182 -183 -183 -182 -182 -179 -174 -166 -160 -159 -161 -158
202006 LH2-70 AR 716 -175 -177 -178 -178 -179 -179 -179 -179 -178 -178 -178 -179 -180 -181 -182 -182 -181 -180 -178 -171 -162 -155 -156 -159 -154
202005 LH2-70 AR 743 -175 -177 -178 -179 -179 -179 -179 -179 -178 -178 -179 -180 -180 -182 -182 -182 -181 -180 -178 -173 -165 -158 -156 -156 -153
202004 LH2-70 AR 681 -173 -176 -177 -178 -179 -179 -179 -179 -179 -178 -179 -180 -181 -182 -182 -182 -181 -180 -178 -174 -163 -156 -154 -156 -152
202003 LH2-70 AR 713 -171 -173 -174 -176 -177 -178 -179 -179 -179 -178 -179 -180 -181 -182 -182 -182 -181 -180 -177 -173 -164 -156 -155 -157 -152
202002 LH2-70 AR 339 -170 -172 -174 -176 -177 -177 -178 -178 -178 -178 -178 -179 -180 -181 -181 -181 -180 -179 -176 -170 -160 -154 -151 -154 -152
202001 LH2-70 AR 743 -169 -171 -173 -175 -177 -178 -178 -178 -178 -178 -177 -178 -179 -180 -180 -179 -178 -176 -173 -166 -157 -150 -150 -150 -148
201912 LH2-70 AR 671 -168 -170 -172 -176 -179 -180 -180 -180 -180 -179 -179 -180 -180 -181 -181 -181 -179 -178 -176 -170 -160 -153 -151 -151 -149
201911 LH2-70 AR 717 -174 -175 -176 -178 -180 -180 -180 -180 -179 -179 -179 -180 -181 -182 -182 -182 -181 -179 -176 -171 -164 -157 -154 -155 -155
201910 LH2-70 AR 740 -173 -175 -177 -179 -180 -180 -180 -180 -179 -179 -179 -180 -181 -182 -182 -182 -181 -180 -177 -171 -162 -157 -154 -155 -154
201909 LH2-70 AR 248 -172 -173 -174 -175 -177 -177 -178 -178 -178 -177 -178 -178 -180 -180 -181 -181 -180 -179 -176 -169 -158 -154 -156 -156 -149
201812 LH2-70 AR 48 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999