Alaska
Avian Hazard Advisory System
(AHAS)
Objectives
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Introduce you to the AHAS system specifically for
use in Alaska.
Objective
Overview
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Radar coverage in Alaska
Current Conditions (current hour query)
Historical Conditions
Map option
Google Earth option
Google Earth API option
Overview
Radar Coverage
routes and airfields
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Most routes and airfields
are outside the
NEXRADs 64 nautical
mile radius for good bird
detection
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Areas that are outside of
the 64 nm radius but
within 133 nm will have a
risk based on the nearest
area within the 64 nm
radius
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Areas outside of the 133
nm radius of the radar
will have a risk based
solely on the BAM.
Radar Coverage
MOAS and ranges
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Most of the MOAs and
ranges are beyond the
64nm radius
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MOAs and ranges that
have a portion of their
area within 64nm will
have a risk based on the
area that is within 64nm.
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Areas outside of a 133
nm radius of the radar
will have a risk based
solely on the BAM.
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Most MOAs will have
BAM risk only
AHAS web page
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The AHAS web page is at
www.usahas.com. Tabs
at the top provide useful
information.
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AHAS now allows you to
select Alert Areas and
unit-specific Web Pages,
if available
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To request a unit specific
page, contact the USAF
BASH Team
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You can also select
output type
AHAS web page tabs
Alert Areas
Unit specific pages
Select output as a
table, map, or with
Google Earth
Table Output
Current Risk
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Search Criteria:
Current hour in
Zulu(1), Elmendorf
AFB (2,3), output
choice (4)
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For Alaska the
current risk(5) is
always based on
NEXRAD data(6)
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There are currently
no soaring or
migration models
for Alaska so there
is never a Height(7)
The table will
automatically
update every six
minutes based on
the current hour
1
2
5
3
4
6
7
Table Output
Historical data
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Search Criteria:
future hour in
Zulu(1), Elmendorf
AFB (2,3), output
choice (4)
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For Alaska, any hour
that is not the
current hour will
result in a risk(5)
based on BAM
data(6)
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There are currently
no soaring or
migration models
for Alaska
The table will
automatically
update every six
minutes based on
the current hour
1
2
5
3
4
6
Map Output
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Search Criteria:
Current biweek(1) and
time period(2) for
Elmendorf AFB(3)
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Must refresh map after
adding layers or changing
biweek, time period or
flying area(4)
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Change BAM layer by
advancing by biweek or
time period(5)
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Must refresh map after
selecting legend choices
or identify tools before
they appear on map(6)
2
1
3
4
5
6
Google Earth Output
(available only on Google Earth enabled computers)
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Google Earth Enterprise Client Version 4.x is certified for use “with conditions” on the Air
Force Global Information Grid, based on the due diligence checks validated by AFCA/EVSN
as reported in the 07-07 Commercial off the Shelf Risk Assessment dated 7 Jul 07.
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Only a United States Government (USG) controlled Google Earth Server can be used. The
user has to obtain the Google Earth Enterprise Client software from the administrators of
the USG controlled Google Earth server.
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The decision to allow users to connect to non-secure servers, and to block or allow
automatic updates should be made by Information Assurance Manager for the enclave the
product is being used within.
Google Earth Output
(available only on Google Earth enabled computers)
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Google Earth output is
not available for unitspecific pages and Alert
Areas
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If you select this output,
risk will be based on
current AHAS readings
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Automatically updates
every six minutes based
on current AHAS risk
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Color defines warning
level
Green = Low
Yellow = Moderate
Red = Severe
Google Earth API
(still in development, available soon)
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Same as Google Earth output
embedded in AHAS web page
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Provides many of the same
layer options as the Map
output.
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Provides options not available
in Map output
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Does not require the Google
earth program, but does
require a downloaded Google
earth plug in
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Layers appear when checkbox
is checked without clicking
refresh
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Points or polygons from any
layer can be identified without
selecting radio button and
clicking refresh
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Refresh button is used to
change flying area, biweek, or
time period
Google Earth API
(still in development, available soon)
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Sectional charts
available as a layer
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Sun rise layer also
available
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Terminal area charts
available for a limited
number of areas
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Flyway charts available
for a limited number of
areas
Google Earth API
(still in development, available soon)
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Transparent BAM layer