Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    Re: Sea level rise
    From: Frank Reed CT
    Date: 2006 Jul 8, 17:30 -0500

    George, you wrote:
    "Here, I think that Frank  was being somewhat over-simplistic in
    relating change in overall sea level to  one location, even as an
    example."
    
    Indeed I was. I was trying to be  brief --and let the data speak for itself
    (sorry Fred, data speak for  themselves).
    
    And you wrote:
    "Such local changes respond not only to  change in sea level, but also
    to changes in land level, which can be rising  or falling.
    For example, even within the limited extent of the geology of the  UK,
    although in some parts of the coast sea levels are rising, in  others
    they are falling. By choosing your location, you could make  whatever
    predictions you thought fit."
    
    The correct expression, of  course, is "relative sea level". The Baltic is
    shrinking and Sweden and Finland  are gaining land area every year because the
    land up there, which bore the  greatest burden of the European ice sheet in the
    last glaciation, is still  rebounding and rising rather rapidly. So "relative
    sea level" is falling. The  same thing is happening to Hudson Bay in Canada.
    On the US East coast about  half, very roughly, of the increase in relative
    sea level is attributed to  geological factors. The land in these area is
    sinking because the continental  shelf, which was dry ground 10,000 years ago, now
    bears the weight of some 100  meters of water.
    
    There are dozens of other tide gauge data sets available  at the web site I
    referenced. Here's the best place to start:
    http://tidesandcurrents.noaa.gov/sltrends/sltrends.html .
    
    
    -FER
    42.0N 87.7W, or 41.4N  72.1W.
    www.HistoricalAtlas.com/lunars
    
    
    --~--~---------~--~----~------------~-------~--~----~
    To post to this group, send email to NavList@fer3.com
    To , send email to NavList-@fer3.com
    -~----------~----~----~----~------~----~------~--~---
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site