16 



FISH AND WILDLIFE TECHNICAL REPORT 25 



Appendix B. Codes for Digital Data 



Code 1. Platform Type (14) 



1 = Centerview aircraft (e.g., P2V, Partanavi) 



2 = Twin engine sideview aircraft (Goose or Otter) 



3 = Single-engine aircraft 



4 = Helicopter 



5 = Fixed at-sea platform 



6 = Ship greater than 100 ft 



7 = Ship less than 100 ft 



8 = Small boat with outboard motor 



9 = Other (on foot) 



Code 2. Survey Type (15) 



1 = General observations: These are records of large flocks, rare or unusual sightings, transects that cannot 



be used to derive density indexes, or any record that will not fit another format. 



2 = Inland waterway count: These surveys are conducted in lakes, lagoons, or rivers. 



3 = Bay or fjord transect: The criteria for a transect are a visibility of at least 1 ,000 m and a moving platform 



with a constant speed and direction. A bay or fjord transect is one made within 

 well-defined headlands. 



A transect conducted within 100 m of the shore and following the contour of the 

 shoreline, rather than a straight line. 

 A count of only ship-followers. 



The criteria for a station count are that the platform is stationary and that all birds 

 are counted in a 360 circle from the platform. 



The criteria for a transect are a visibility of at least 1 ,000 m and a moving platform 

 with a constant speed and direction. An oceanic-transect is conducted outside well- 

 defined headlands. 



4 = Coastline count: 



= Ship-follower count: 

 = Station count: 



9 = Oceanic transect: 



Code 3. Observation Conditions (75) 



1 = Bad (general observations only) 



2 = Poor (no quantitative analysis) 



3 = Fair 



4 = Average 



5 = Good 



6 = Excellent 



7 = Maximum 



Code 5. Sea State (49) 



= Calm 



1 = Rippled (0.01-0.25 ft) 



2 = Wavelet (0.26-2.0 ft) 



3 = Slight (2-4 ft) 



4 = Moderate (4-8 ft) 



5 = Rough (8-13 ft) 



6 = Very rough (13-20 ft) 



7 = High (20-30 ft) 



8 = Over 30 ft 



Code 4. Distance to Ice Edge (35) 



= Up to 1 nmi 



1.1-2.0 nmi 

 2.1-4.0 nmi 

 4.1-6.0 nmi 

 6.1-8.0 nmi 

 8.1-12.0 nmi 

 12. 1-16.0 nmi 

 16.1-20.0 nmi 



8 = greater than 20 nmi 



Code 6. Weather (55-56) 



00 = Clear to partly cloudy (0-50% cloud cover) 



03 = Cloudy to overcast (51-100% cloud cover) 



41 = Fog (patchy) 



43 = Fog (solid) 



68 = Rain 



71 = Snow 



87 = Hail 



