曝光台 注意防骗
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the form and size of the ice crystals may change the angle between the crystal sides and therefore
the light refraction remains constant for a given element. The Danish scientist, scholar and philosopher
Niels Steensen first described this law of Nature already in 1669.
When sunlight hits the ice crystals of the high altitude clouds, the light is refracted at constant angles. Most
often, this delivers a brilliant rainbow coloured circle (sector) around the sun with a radius of 22°. The °
means degree (deg) of which 360 make up a full circle. 22° convert to 0.38397 Radian (rad). Such a brilliant
ring around the sun has a commonly used Greek term: Halo .
Sundogs (also known as parhelia) are particularly common when the sun is low in the sky. After halos, sundogs
are the light phenomena most often seen and they also owe their presence to the refraction of sunlight
in ice crystals in the atmosphere. Sundogs can appear only when there is a halo in the sky and they are
produced when light passes through to ice crystal sides angled respectively at 60°. This 60° angling of the
Danish Polar Center
IPY Service Manual for Kangerlussuaq 2008
version 1 June 2008
Compiled and written by Henning Thing (het@fi.dk)
Danish Polar Center Danish Agency for Science, Technology and Innovation
page 60 of 60
light diffuses the sun rays equally in all direction except exactly 22° in relation to the sun. Therefore, sundogs
are seen as clearly defined and brightly illuminated rainbow coloured spots horizontally on either side
of the low sun and in a distance of 22° from the sun.
If you would like to know to plant and wildlife species in Greenland
in 10 languages then download the Names Dictionary from
http://www.ipy.dk/namesdictionary.pdf
STAFF REPORT
SUBJECT: 2004 Clean Air Express Operator Contract RFP
MEETING DATE: August 19, 2004 AGENDA ITEM: 12
RECOMMENDATION:
A. Cancel 2004 Clean Air Express Operator Contract RFP and reject all proposals.
B. Direct staff to develop a new RFP.
SUMMARY:
On May 20, 2004, American Star submitted a formal protest against the staff recommendation
to award the Clean Air Express operator contract to another operator. Staff has been evaluating
the protest in accordance with the procedures outlined in the 2004 Request for Proposals
(RFP). On June 23, 2004, SBCAG staff met with representatives of American Star to discuss
the protest. No resolution was reached and American Star elected to request further
consideration of its protest as per the RFP Protest Procedures. On July 30, 2004 SBCAG
received American Star’s final argument for the protest. After reviewing the protest, the RFP
process and federal procurement regulations, staff finds that neither the RFP process nor the
contract award recommendation violates federal procurement regulations. However, staff does
recognize two concerns with the 2004 RFP:
1. There was potential for confusion regarding the insurance provisions.
2. The proposal schedule was necessarily short, increasing the difficulty for the bidders to
understand and respond to the complex insurance provisions.
In light of these concerns, staff is recommending to the Board that the 2004 RFP be cancelled
and all bids be rejected. Once the 2004 RFP is cancelled, staff will clarify the RFP
specifications, improve the RFP process and bring a revised RFP to the Board for approval prior
to its re-issuance.
DISCUSSION:
At the January 18, 2004 Board meeting, after hearing testimony from Santa Barbara Airbus, the
Board directed staff to re-evaluate the 2003 Clean Air Express Operator Request for Proposal
(2003 RFP) to determine what improvements could be made to the RFP. To respond to the
Board’s request, the 2003 RFP was cancelled and a new 2004 RFP was issued which
substantially changed the RFP and contract provisions regarding insurance requirements. The
evaluation committee reviewed the four proposals submitted under the 2004 RFP and on May
20, 2004, staff recommended to the Board that the contract be awarded to Santa Barbara
2
Airbus. At the May 20, 2004 Board meeting, American Star submitted a protest against the staff
recommendation regarding the 2004 RFP.
Since the protest was submitted in May, SBCAG has received a total of thirty-nine (39) letters,
memos and other correspondence from American Star relating to the protest. SBCAG has sent
twelve (12) letters responding to these letters.1 These letters include requests for hundreds of
documents related to the 2001, 2003 and 2004 operator RFPs, as well as all correspondence
with the Clean Air Express passengers and the Clean Air Express contractor. Many of the
documents and records requested by American Star are not directly related to the 2004 RFP
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