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- Forwarded Message Follows -------
Date sent: Fri, 08 Mar 1996 20:37:20 +0000
From: Ralph Cutter <cutter_at_flyline.com>
Send reply to: cutter_at_flyline.com
Organization: California School of Flyfishing
To: Veikko.Makela_at_helsinki.fi
Subject: airglow and nocturnal vision
Hi-
Many nocturnal animals have excellent ultra violet
perception. Where does the UV radiation come from at night
to allow these animals to use this ability? Is there enough
UV radiation at the 300-400nm range on the earth's surface
at night for animals to hunt, navigate, etc?
I've heard of a phenomena called "airglow" but am not at
all sure what it is. Can you describe it to me and give me
an opinion if there would be enough near level UV for
animals to use?
Thank you very much- Ralph cutter_at_flyline.com
f9 the 300-400nm range on the earth's surface
at night for animals to hunt, navigate, etc?
I've heard of a phenomena called "airglow" but am not at
all sure what it is. Can you describe it to me and give me
an opinion if there would be enough near level UV for
animals to use?
Thank you very much- Ralph cutter_at_flyline.com
e.com
ve excellent ultra violet
perception. Where does the UV radiation come from at night
to allow these animals to use this ability? Is there enough
UV radiation
UV radiation <35166B4DC3_at_kaski.helsinki.fi>
Date: Sat, 9 Mar 1996 14:06:38 +0200
Reply-To: "Meteorological (atmospheric) optics"
<METEOPTIC_at_LISTSERV.FUNET.FI>
Sender: "Meteorological (atmospheric) optics"
<METEOPTIC_at_LISTSERV.FUNET.FI>
From: Veikko M{kel{ <PVTMAKELA_at_kaski.helsinki.fi>
Organization: University of Helsinki
Subject: airglow and nocturnal vision
To: Multiple recipients of list METEOPTIC
<METEOPTIC_at_LISTSERV.FUNET.FI>
X-PMFLAGS: 34078848
- Forwarded Message Follows -------
Date sent: Fri, 08 Mar 1996 20:37:20 +0000
From: Ralph Cutter <cutter_at_flyline.com>
Send reply to: cutter_at_flyline.com
Organization: California School of Flyfishing
To: Veikko.Makela_at_helsinki.fi
Subject: airglow and nocturnal vision
Hi-
Many nocturnal animals have excellent ultra violet
perception. Where does the UV radiation come from at night
to allow these animals to use this ability? Is there enough
UV radiation at the 300-400nm range on the earth's surface
at night for animals to hunt, navigate, etc?
I've heard of a phenomena called "airglow" but am not at
all sure what it is. Can you describe it to me and give me
an opinion if there would be enough near level UV for
animals to use?
Thank you ve; Sat, 09 Mar 1996 14:06:45
+0200 (EET)
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