Scott Veirs on 11/30/2107: 
README for 2017 Slow-down trial (Aug 7 - Oct 6)
AIS data collected by NEMES at Orcasound Lab (585 Smugglers Cove Road)
VHF antenna on dead tree near bluff (elevation ~15m above MLLW) 
Data logged by NEMES Raspberry Pi
Backed up to orcasound.net/data in Nov 2017
2nd/3rd back-ups on two black WD 8Tb drives (SJI, Seattle)

[clinch]$ ls -al raw/ais/OS-NEMES-ais/
total 41736
drwxr-xr-x 2 scottveirs2 pg1124512     4096 Nov 30 10:42 .
drwxrwxr-x 4 scottveirs2 pg1124512       59 Nov 13 15:43 ..
-rw-r--r-- 1 scottveirs2 pg1124512  8316004 Nov 13 15:44 AIS_data.txt
-rw-r--r-- 1 scottveirs2 pg1124512  8001984 Nov 13 15:44 AIS_data.txt_old
-rw-r--r-- 1 scottveirs2 pg1124512 12485338 Nov 29 17:16 AIS_data_8_7_17__9_08_17.txt
-rw-r--r-- 1 scottveirs2 pg1124512 13918154 Nov 29 17:11 AIS_data_9_07_17__11_18_17.txt
-rw-rw-r-- 1 scottveirs2 pg1124512      321 Nov 30 10:42 readme.txt

Per head and tail output:
DATE-TIME RANGES
Start             End               File
2017-08-07_170319 2017-08-30_081720 AIS_data.txt
2017-04-20 075346 2017-05-09 222823 AIS_data.txt_old
2017-08-07 170319 2017-09-08 121841 AIS_data_8_7_17__9_08_17.txt
2017-09-07 111800 2017-11-18 131707 AIS_data_9_07_17__11_18_17.txt

*_old file is from outside the slow-down data range. Thus, I will:
mkdir ~/orcasound.net/data/raw/ais 
mv AIS_data.txt_old ~/orcasound.net/data/raw/ais/AIS_170420-170509.txt

and 

mkdir ~/orcasound.net/data/2017-slow-down/processed/ais/OS-NEMES-ais
cat AIS_data_8_7_17__9_08_17.txt AIS_data_9_07_17__11_18_17.txt > ~/orcasound.net/data/2017-slow-down/processed/ais/OS-NEMES-ais/AIS_170807-171106.txt
and then go hand-edit it to remove the october dates >10/7...

Nove 30 email from Val re metadata:

OrcaSound hydrophone (OS):
lat = 48.558950
long = -123.173112
datetime is date and time in standard format, local time
range is meters from OS
bearing is deg clockwise from true N
sog	is AIS reported speed in kts
cog   is AIS reported course in degrees
lat/lon are AIS reported ship position
No background subtraction has been done for dB's as these are RL's.
the hydrophone is the ITC6050C (the one with integral preamp)
All the db values are 1 second averages at OS at the time of each AIS report
  (Maybe this should be 100 secs or such but right now I am just grabbing the precomputed 1 sec aves closes to the AIS reported time)
The averaging time for these dBs is 
db_BB is broadband
db_Orca is audiogram weighted
db_Call is the 500 - 15 khz metric
db_Click is the 15 khz to 22050 (in this case) click metric
db_OrcaCall is the call band audiogram weighted
db_OrcaClick is the click band audiogram weighted

I have been using the node slot to represent two different boxes, one for the WSF ferry crossing from Speiden Channel:
		lat		lon
	WSF  48.664880		-123.404179
	          48.615740		-123.173381
and one box for ships passing in front of Orcasound
	OS   48.691560	        -123.328700   
	        48.406110	        -123.103480