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View Diary: Drowning Sacramento in a tide of oil. (54 comments)

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  •  My apologies; here is clarification: (1+ / 0-)
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    Sea level rise will mean that:

    when there's a high-high tide downstream
    in midwinter during a really wet year
    when all of the dams are releasing lots of water

    that the water level on the Sacramento River will be pushed up even farther than we've seen it go;

    my anecdote was to convey the fact that even 30-40 years ago, there were some really scary high-water events.

    The year I saw this the Yolo Bypass was, as usual, already flooded as it is supposed to be. It was maxed out.

    If the Sacramento tops out even higher, levees don't even have to break- they'll be overtopped. This is most likely to happen as the high-tide wave from downstream sluggishly propagates upstream. This high-tide wave will be much higher 30, 50, 70 years from now than it was in 1967 or whenever it was I saw this, because of climate change. I might mention I lived in the Sacto area from 1950 to 1972 and go back for visits, so I know something of what I speak.

    So no, I didn't get this wrong and I was not talking about metaphors at all. I was talking about a predictable but not obvious consequence of sea level rise, that would be a very unpleasant surprise to

    West Sacramento is only 15 feet above sea level. Natomas is way low. Marysville has been flooded twice in my lifetime and it'll happen again. Forest fires will increase in severity and frequency, leading to increased runoff.

    mrsgoo is right that we need more storage, but I don't think we can put in any more dams without killing all the salmon. Ground-water storage needs to be vigorously pursued.

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