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Subsidence

    • 2564 posts
    1
    March 8, 2017 11:54:51 AM PST

    http://www.livescience.com/58141-san-joaquin-valley-sinking-space-image.html?utm_source=notification

     

    Tw0 feet subsidence in a year?

    • 4977 posts
    2
    March 8, 2017 12:31:53 PM PST
    Cities and farmers have been drilling well like crazy during the drought trying to survive.
    The Owens Valley has sunk something like 30' due to groundwater pumping.

    In the meantime, our leaders under the dome in Sacramento spend money on illegals and ignore our water needs. We need the Sites Reservoir and probably at least one more big reservoir like Marysville or Auburn Dam. Neither will happen until enough voters can't get water or Sacramento floods. Sad but true.
    • 2564 posts
    3
    March 8, 2017 12:53:34 PM PST
    http://wwwcimis.water.ca.gov/

    Rice and Wheat are popular crotps because they are water efficient. About three feet per year. Three acre feet per acre. Popular crops are farmed becauser of the return on investment. If there is a crop that is more water efficeint, ti will replace rice or wheat. Irrigation practices also improve water use. There is no CMIS for trees or for water sheds, I think we would all benefit frem learning how to harvest water from the watershed of existing resrevoirs. More trees? Fewer trees? More solis modification? Less soil modification.

    • 2564 posts
    4
    March 8, 2017 12:59:43 PM PST
    2Grands said:
    Cities and farmers have been drilling well like crazy during the drought trying to survive. The Owens Valley has sunk something like 30' due to groundwater pumping. In the meantime, our leaders under the dome in Sacramento spend money on illegals and ignore our water needs. We need the Sites Reservoir and probably at least one more big reservoir like Marysville or Auburn Dam. Neither will happen until enough voters can't get water or Sacramento floods. Sad but true.

    Agree with most.

    From what I have seen of Califonia "Public meetings" are orchestrated brawls. Moderators emphazize differneces and reject discussion of common agreement. I think improved ground water management is the first area of discussion. Define groundwater. Much of what is called grounwater, to me is surface water. Because it "communicates" with surface water. Permiabiliyt and porostiy of soils is a mystery area.

    • 2564 posts
    5
    March 8, 2017 1:17:53 PM PST
    http://www.cimis.water.ca.gov/
    • 2564 posts
    6
    March 8, 2017 1:20:49 PM PST
    The California Irrigation Management Information System (CIMIS) is a program unit in the Water Use and Efficiency Branch, Division of Statewide Integrated Water Management, California Department of Water Resources (DWR) that manages a network of over 145 automated weather stations in California. CIMIS was developed in 1982 by DWR and the University of California, Davis (UC Davis). It was designed to assist irrigators in managing their water resources more efficiently. Efficient use of water resources benefits Californians by saving water, energy, and money.
    • 2564 posts
    7
    March 8, 2017 1:32:46 PM PST
    UC Davis Research Station on Scott Forbes Road has one of the 145 CIMIS measuring stations. I would like to see a CMIS for trees in specific watersheds. As part of watershed manamagement, What is the optimum tree coverage for water storage and retrieval? What soils modifications would optimize water storage and recovery?
    • 2564 posts
    8
    March 8, 2017 3:38:24 PM PST
    Our Congressman writes about flood control

    https://iqconnect.lmhostediq.com/iqextranet/view_newsletter.aspx?id=100292&c=CA03JG
    There is no more time for talk; the people of Northern California demand action. As your Representative in Congress, I am committed to fighting for your safety and to ensure your home and community have proper flood control protections.
    • 2564 posts
    9
    March 8, 2017 3:52:02 PM PST
    California Bearing Ratio
    https://en.wikipedia.org/wiki/California_bearing_ratio
    Soil load bearing tests were not available in 1176 wen construction began on a bell tower in the coastal town of Pisa. On the floodplain of the Arno River. Even so, think of all the money saved by not having to do a soil test. Much later the California Bearing Ratio was developed to measure, well, soil bearing. https://en.wikipedia.org/wiki/California_bearing_ratio
    Modern tests include measures of soil moisture.
    I think there is a need for a poster similar to the poster of the Leaning Tower of Pisa that has the caption stating how much was saved by not doing soil tests. The peicture would be of the Oroville Spillwat with the caption "Think of how much money was saved by not extending the spillway:. Or Think of how much money was saved by not negotiating the purchase of electric power in flood release. Or using the electric power to pump water over the Tehacipi.