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    #16
    https://oceanservice.noaa.gov/facts/sealevel.html https://oceanservice.noaa.gov/facts/sealevel.html

    https://tidesandcurrents.noaa.gov/sltrends/ https://tidesandcurrents.noaa.gov/sltrends/

    "Global sea level has been rising over the past century, and the rate has increased in recent decades. In 2014, global sea level was 2.6 inches above the 1993 average—the highest annual average in the satellite record (1993-present). Sea level continues to rise at a rate of about one-eighth of an inch per year.

    Higher sea levels mean that deadly and destructive storm surges push farther inland than they once did, which also means more frequent nuisance flooding. Disruptive and expensive, nuisance flooding is estimated to be from 300 percent to 900 percent more frequent within U.S. coastal communities than it was just 50 years ago.

    The two major causes of global sea level rise are thermal expansion caused by warming of the ocean (since water expands as it warms) and increased melting of land-based ice, such as glaciers and ice sheets. The oceans are absorbing more than 90 percent of the increased atmospheric heat associated with emissions from human activity.

    With continued ocean and atmospheric warming, sea levels will likely rise for many centuries at rates higher than that of the current century. In the United States, almost 40 percent of the population lives in relatively high-population-density coastal areas, where sea level plays a role in flooding, shoreline erosion, and hazards from storms. Globally, eight of the world's 10 largest cities are near a coast, according to the U.N. Atlas of the Oceans.

    Sea level rise at specific locations may be more or less than the global average due to local factors such as land subsidence from natural processes and withdrawal of groundwater and fossil fuels, changes in regional ocean currents, and whether the land is still rebounding from the compressive weight of Ice Age glaciers. In urban settings, rising seas threaten infrastructure necessary for local jobs and regional industries. Roads, bridges, subways, water supplies, oil and gas wells, power plants, sewage treatment plants, landfills—virtually all human infrastructure—is at risk from sea level rise."

    Comment


      #17
      https://oceanservice.noaa.gov/facts/sealevel.html https://oceanservice.noaa.gov/facts/sealevel.html

      "What's the difference between global and local sea level?

      Global sea level trends and relative sea level trends are different measurements. Just as the surface of the Earth is not flat, the surface of the ocean is also not flat—in other words, the sea surface is not changing at the same rate globally. Sea level rise at specific locations may be more or less than the global average due to many local factors: subsidence, upstream flood control, erosion, regional ocean currents, variations in land height, and whether the land is still rebounding from the compressive weight of Ice Age glaciers.

      Sea level is primarily measured using tide stations and satellite laser altimeters. Tide stations around the globe tell us what is happening at a local level—the height of the water as measured along the coast relative to a specific point on land. Satellite measurements provide us with the average height of the entire ocean. Taken together, these tools tell us how our ocean sea levels are changing over time."

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        #18
        https://climate.nasa.gov/vital-signs/sea-level/ https://climate.nasa.gov/vital-signs/sea-level/ Click image for larger version

Name:	12_seaLevel_left.jpg
Views:	1
Size:	15.6 KB
ID:	769187

        GROUND DATA: 1870-2013
        Last edited by chuckChuck; Dec 8, 2019, 08:54.

        Comment


          #19
          Wow that satellite data from the 1800s is impressive and especially the rise in seas level before the car was invented and mass produced.

          Got any satellite data from the 1600s, or 500BC or 1M BC?

          Comment


            #20
            The above graph is based on ground data!

            GROUND DATA: 1870-2013

            I can't post the the satellite data graph from 1993 - present for some reason but it is on the same page as the ground data at https://climate.nasa.gov/vital-signs/sea-level/ https://climate.nasa.gov/vital-signs/sea-level/
            Last edited by chuckChuck; Dec 8, 2019, 09:04.

            Comment


              #21
              Originally posted by jazz View Post
              Wow that satellite data from the 1800s is impressive and especially the rise in seas level before the car was invented and mass produced.

              Got any satellite data from the 1600s, or 500BC or 1M BC?
              When were the photos taken cricket, sorry I mean jazz.
              During high or low tide?

              Comment


                #22
                Originally posted by Bin Lurking View Post
                When were the photos taken cricket, sorry I mean jazz.
                During high or low tide?
                Looks to be about mid day in all the photos.

                Are the tides forcing anyone off the coasts because that's a daily rise in sea level. People don't seem to worried about a meter rise every day, seems they wont mind a few mm rise every century.

                Comment


                  #23
                  Photos taken of beaches at midday are irrelevant to the science of rising sea level. Its a small amount of rise over a long period unless we get into a tipping point of a strong positive feed back which can cause relatively rapid catastrophic sea level rise.

                  Scientists are already very concerned about potential tipping points that will lead to rapid large rises.

                  Comment


                    #24
                    Originally posted by chuckChuck View Post
                    Sea level continues to rise at a rate of about one-eighth of an inch per year.
                    Chuck, I thought you said there was a consensus, and that the science was settled? Your number works out to 12.5" per century.

                    Yet Austranada above claims it is less than 1/3 of that rate:

                    Actual mean sea level rise is 4 inches in the last century
                    Austranada has been coming to your defense on multiple occasions, and as thanks you go and contradict him, you guys really need to get your story straight before you post.

                    Comment


                      #25
                      Originally posted by chuckChuck View Post
                      Scientists are already very concerned about potential tipping points that will lead to rapid large rises.
                      And they are concerned where they will get their next meal ticket to fund their mouse studies now that exactly NONE of their climate predictions have come to pass. Better discount the data on the ground and talk up a scary possible future to get those bucks rolling in again. Dispatch Greta.

                      Comment


                        #26
                        Originally posted by AlbertaFarmer5 View Post
                        Chuck, I thought you said there was a consensus, and that the science was settled? Your number works out to 12.5" per century.

                        Yet Austranada above claims it is less than 1/3 of that rate:



                        Austranada has been coming to your defense on multiple occasions, and as thanks you go and contradict him, you guys really need to get your story straight before you post.
                        "Sea level rise at specific locations may be more or less than the global average due to local factors such as land subsidence from natural processes and withdrawal of groundwater and fossil fuels, changes in regional ocean currents, and whether the land is still rebounding from the compressive weight of Ice Age glaciers. In urban settings, rising seas threaten infrastructure necessary for local jobs and regional industries. Roads, bridges, subways, water supplies, oil and gas wells, power plants, sewage treatment plants, landfills—virtually all human infrastructure—is at risk from sea level rise."

                        I don't see Austranada's post. What data source is he using?
                        Last edited by chuckChuck; Dec 8, 2019, 09:41.

                        Comment


                          #27
                          Originally posted by mustardman View Post
                          Jazz if you want to see what increased c02 does look to the Oceans. the acidification kills Coral, most great reefs are dying to the increase in carbon dioxide that acidifies and makes any shell building near impossible
                          Oh by the way we humans won’t be here long if we Kill off the oceans
                          Actually, that myth has been debunked as well. Whistle blowers like Dr. Peter Ridd (who recently won his court case on the issue), and Dr. Jennifer Marohasy are exposing the corruption and the true state of the health of the great barrier reef.

                          Lots of articles and links to papers on coral reefs on this page:

                          https://wattsupwiththat.com/?s=coral https://wattsupwiththat.com/?s=coral

                          Comment


                            #28
                            Originally posted by AlbertaFarmer5 View Post
                            Actually, that myth has been debunked as well. Whistle blowers like Dr. Peter Ridd (who recently won his court case on the issue), and Dr. Jennifer Marohasy are exposing the corruption and the true state of the health of the great barrier reef.

                            Lots of articles and links to papers on coral reefs on this page:

                            https://wattsupwiththat.com/?s=coral https://wattsupwiththat.com/?s=coral
                            Trust you to use a climate change denial site as your source of information! Can't find independent science to back up your claims?

                            Comment


                              #29
                              Originally posted by chuckChuck View Post
                              "Sea level rise at specific locations may be more or less than the global average due to local factors such as land subsidence from natural processes and withdrawal of groundwater and fossil fuels, changes in regional ocean currents, and whether the land is still rebounding from the compressive weight of Ice Age glaciers. In urban settings, rising seas threaten infrastructure necessary for local jobs and regional industries. Roads, bridges, subways, water supplies, oil and gas wells, power plants, sewage treatment plants, landfills—virtually all human infrastructure—is at risk from sea level rise."
                              You should have advised Obama on that before he closed the deal on Martha Vineyard... B.O. should have known better being a globalist warmer activist. His new pad will be under water soon lol

                              Comment


                                #30
                                Originally posted by chuckChuck View Post
                                "Sea level rise at specific locations may be more or less than the global average due to local factors such as land subsidence from natural processes and withdrawal of groundwater and fossil fuels, changes in regional ocean currents, and whether the land is still rebounding from the compressive weight of Ice Age glaciers. In urban settings, rising seas threaten infrastructure necessary for local jobs and regional industries. Roads, bridges, subways, water supplies, oil and gas wells, power plants, sewage treatment plants, landfills—virtually all human infrastructure—is at risk from sea level rise."
                                Do you even engage your head before you post? What nonsense.

                                For that anything even remotely like that scenario to happen every bit of ice on the planet would have to melt in rapid fashion and that means Greenland and Antarctica at the same time. You would need a year round temperature near zero in each of those areas to get that, otherwise winter accumulations of ice would offset some of the melting and it would take longer.

                                Greenland has NO sunlight for almost 6 months of the year, same as Antarctica. The average temperatures in each at those periods is -40deg.

                                You would need more than 20deg of warming to make a dent in those places. Even if that happened, it would take hundreds of years to melt. More than enough time to move a few million people a couple miles inland. 10 times that migrate from rural to cities now. Without direct sunlight on them, these two continents can NEVER melt.

                                Good god man, anything upstairs at all? Like no critical thinking at all? How did you get this far in life?
                                Last edited by jazz; Dec 8, 2019, 09:57.

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