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  • CU Sea Level Research Group | University of Colorado
    Series seasonal signals removed Edited 2012 08 22 Share Data Raw data ASCII PDF EPS Similar plots Global Mean Sea Level Time Se ries seasonal signals retained Release Notes 2012 Release 4 2012 08 22 Added Jason 2 OSTM GDR cycles 141 145 Calibration To cite these plots or data please use Nerem R S D Chambers C Choe and G T Mitchum Estimating Mean Sea Level Change from the TOPEX and Jason Altimeter Missions Marine Geodesy 33 no 1 supp 1 2010 435 2012 rel4 GMSL and Multivariate ENSO Index Edited 2012 08 23 Share PDF EPS Discussion The Multivariate ENSO Index MEI is the unrotated first principal component of six observables measured over the tropical Pacific see NOAA ESRL MEI Wolter Timlin 1993 1998 To compare the global mean sea level to the MEI time series we removed the mean linear trend and seasonal signals from the 60 day smoothed global mean sea level estimates and normalized each time series by its standard deviation The normalized values plotted above show a strong correlation between the global mean sea level and the MEI with the global mean sea level often lagging changes in the MEI Senate Committee Hearing on Impacts of Rising Sea Levels on Domestic Infrastructures Edited 2012 04 22 Dallas Masters s blog Share The U S Senate Committee on Energy and Natural Resources had a hearing April 19 2012 on the Impacts of Rising Sea Levels on Domestic Infrastructures NASA Chief Scientist Dr Waleed Abdalati gave testimony that included our release 2012 rel1 global mean sea level time series More here NASA mission takes stock of Earth s melting land ice Edited 2012 02 13 Dallas Masters s blog Share NASA mission takes stock of Earth s melting land ice In the first comprehensive satellite study

    Original URL path: http://sealevel.colorado.edu/ (2012-11-11)
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  • Regional Sea Level Time Series | CU Sea Level Research Group
    the x intercept i e zero crossing or base year of the GMSL plots Why is the GMSL different than local tide gauge measurements All FAQs Sea Level Links AVISO CLS Radar Altimetry Tutorial CSIRO GFZ GRACE Global Sea Level Observing System GLOSS JPL GRACE Tellus JPL Ocean Surface Topography LEGOS CTOH NASA EO World of Change NASA Global Climate Change NOAA Satellite Altimetry Permanent Service for Mean Sea Level PSMSL Radar Altimeter Database RADS UT CSR GRACE Regional Sea Level Time Series Edited 2011 07 19 Share Inverted barometer applied GIA NOT corrected Seasonal signal included Data Sets Pacific Ocean sl Pacific Ocean Atlantic Ocean sl Atlantic Ocean Indian Ocean sl Indian Ocean Adriatic Sea sl Adriatic Sea Andaman Sea sl Andaman Sea Arabian Sea sl Arabian Sea Bay of Bengal sl Bay of Bengal Bering Sea sl Bering Sea Carribean Sea sl Carribean Sea Gulf of Alaska sl Gulf of Alaska Gulf of Mexico sl Gulf of Mexico Indonesian Throughflow sl Indonesian Throughflow Mediterranean Sea sl Mediterranean Sea Sea of Japan East Sea sl Japan East Sea South China Sea sl South China Sea Yellow Sea sl Yellow Sea Maldives sl Maldives CU Sea Level Blog Senate Committee Hearing on Impacts of Rising Sea Levels on Domestic Infrastructures NASA mission takes stock of Earth s melting land ice NASA Satellites Detect Pothole on Road to Higher Seas more Our Publications The 2011 La Niña So strong the oceans fell Is there a 60 year oscillation in global mean sea level Comparison of Global Mean Sea Level Time Series from TOPEX Poseidon Jason 1 and Jason 2 Reconstructing sea level using cyclostationary empirical orthogonal functions more Recent Sea Level Articles Mixed layer heat budget of the El Niño in NCEP climate forecast system A demonstration of the potential of

    Original URL path: http://sealevel.colorado.edu/content/regional-sea-level-time-series (2012-11-11)
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  • Map of Sea Level Trends | CU Sea Level Research Group
    of the GMSL plots Why is the GMSL different than local tide gauge measurements All FAQs Sea Level Links AVISO CLS Radar Altimetry Tutorial CSIRO GFZ GRACE Global Sea Level Observing System GLOSS JPL GRACE Tellus JPL Ocean Surface Topography LEGOS CTOH NASA EO World of Change NASA Global Climate Change NOAA Satellite Altimetry Permanent Service for Mean Sea Level PSMSL Radar Altimeter Database RADS UT CSR GRACE Map of Sea Level Trends Edited 2012 04 06 Share Map of Sea Level Trends Local trends are calculated with a least squares fit of 10 day 0 25 degree resolution grids of sea level A trend bias annual and semi annual terms are fit simultaneously Please note that these trends have been determined for only a nineteen year 1993 2012 period and reflect the impact of decadal scale climate variability on the regional distribution of sea level rise Additionally local sea surface height trends and variations are a result of many factors including but not limited to local crustal displacement glacial isostatic adjustment steric effects and even local wind patterns Therefore you should consider these effects in interpreting local sea surface height time series derived from our gridded data sets Data Raw data ASCII PDF EPS CU Sea Level Blog Senate Committee Hearing on Impacts of Rising Sea Levels on Domestic Infrastructures NASA mission takes stock of Earth s melting land ice NASA Satellites Detect Pothole on Road to Higher Seas more Our Publications The 2011 La Niña So strong the oceans fell Is there a 60 year oscillation in global mean sea level Comparison of Global Mean Sea Level Time Series from TOPEX Poseidon Jason 1 and Jason 2 Reconstructing sea level using cyclostationary empirical orthogonal functions more Recent Sea Level Articles Mixed layer heat budget of the El Niño

    Original URL path: http://sealevel.colorado.edu/content/map-sea-level-trends (2012-11-11)
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  • Interactive Sea Level Time Series Wizard | CU Sea Level Research Group
    account for plate tectonics in the global mean sea level trend Is sedimentation in the oceans accounted for in the GMSL estimate What determines the x intercept i e zero crossing or base year of the GMSL plots Why is the GMSL different than local tide gauge measurements All FAQs Sea Level Links AVISO CLS Radar Altimetry Tutorial CSIRO GFZ GRACE Global Sea Level Observing System GLOSS JPL GRACE Tellus JPL Ocean Surface Topography LEGOS CTOH NASA EO World of Change NASA Global Climate Change NOAA Satellite Altimetry Permanent Service for Mean Sea Level PSMSL Radar Altimeter Database RADS UT CSR GRACE Interactive Sea Level Time Series Wizard Edited 2011 11 11 Share Select a point on the map or center coordinates Longitude Latitude Select map Variance Bathymetry Remove Nothing Seasonal terms and mean Smoothing None Boxcar Cosine Gaussian Median Max likelihood Days Gridded SSH Anomaly Database ssh anomaly nc 1 deg x 1 deg gridded sea level anomaly time series in netCDF format the base data for the Interactive Wizard CU Sea Level Blog Senate Committee Hearing on Impacts of Rising Sea Levels on Domestic Infrastructures NASA mission takes stock of Earth s melting land ice NASA Satellites Detect Pothole on Road to Higher Seas more Our Publications The 2011 La Niña So strong the oceans fell Is there a 60 year oscillation in global mean sea level Comparison of Global Mean Sea Level Time Series from TOPEX Poseidon Jason 1 and Jason 2 Reconstructing sea level using cyclostationary empirical orthogonal functions more Recent Sea Level Articles Mixed layer heat budget of the El Niño in NCEP climate forecast system A demonstration of the potential of Cryosat 2 to contribute to mesoscale observation The 2011 La Niña So strong the oceans fell Integrating Non Tidal Sea Level data from

    Original URL path: http://sealevel.colorado.edu/content/interactive-sea-level-time-series-wizard (2012-11-11)
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  • Data Processing Methods | CU Sea Level Research Group
    Set MGDR B GDR C GDR T Orbit STD0905 Lemoine et al 2010 GDR T Range Corrections Waveform Tracker GDR Dry Troposphere GDR from ECMWF Wet Troposphere TMR Replacement Product v 1 0 GDR C Cycles 1 227 JMR Replacement Product Cycles 228 259 AMR GDR Ionosphere GDR Sea State Bias CLS Collinear v 2009 Tran et al 2010 Center of Gravity MGDR B N A Mean Sea Surface Corrections Mean Sea Surface CLS01 Ocean Tide Loading Tide GOT4 7 Ray 1999 Long Period Equilibrium Tide Cartwright Tayler 1971 Cartwright Edden 1973 Solid Earth Tide GDR Cartwright Tayler 1971 Cartwright Edden 1973 Pole Tide GDR Wahr 1985 Atmospheric Pressure Inverted Barometer AVISO Dynamic Atmosphere Correction DAC that combines MOG2D high frequency and inverted barometer low frequency signals Pascual et al 2008 Glacial Isostatic Adjustment GIA 0 3 mm yr Peltier 2001 2002 2009 Peltier Luthcke 2009 Processing Corrections Inter Mission Bias 88 48 mm TOPEX to Jason 1 58 52 mm Jason 1 to Jason 2 Minimum Ocean Depth 120 m Outlier Removal anomaly greater than 2 m Global mean sea level We chose to reference TOPEX and Jason SSH anomalies on the common ground track to an along track mean computed by the CLS 01 mean sea surface 1 Each cycle of T P and Jason data are referenced to a standard set of locations using a cross track gradient correction Global mean sea level was computed from the corrected SSH anomalies using a simple equal area weighted average 2 See our calibration paper Leuliette E W R S Nerem and G T Mitchum Calibration of TOPEX Poseidon and Jason Altimeter Data to Construct a Continuous Record of Mean Sea Level Change Marine Geodesy 27 no 1 2004 79 for more information References Division CLS Space Oceanography CLS01 Mean

    Original URL path: http://sealevel.colorado.edu/content/data-processing-methods (2012-11-11)
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  • Tide Gauge Sea Level | CU Sea Level Research Group
    account for any settling of the site Tide gauges may also move vertically with the region as a result of post glacial rebound tectonic uplift or crustal subsidence This greatly complicates the problem of determining global sea level change from tide gauge data Differences in global sea level estimates from tide gauge data usually reflect the investigator s approach in considering these vertical crustal movements Tide gauges also monitor meteorological factors that affect sea levels such as barometric pressure and wind speed so that these variable factors can be eliminated from long term assessments of sea level change Although the global network of tide gauges comprises of a poorly distributed sea level measurement system it offers the only source of historical precise long term sea level data Major conclusions from tide gauge data have been that global sea level has risen approximately 10 25 cm during the past century Tide Gauge Estimates of Mean Sea Level Rise Estimates of global sea level rise which were derived from tide gauge records are found in the table below Most of the investigators reported that the estimated values were sensitive to the choice of record length and the tide gauges selected This sensitivity coupled with different computational techniques and modeling would certainly explain some of the differences shown below Sea Level Rise mm yr Error mm yr Data Used years of Tide Gauges References 2 8 0 8 1993 2009 200 Church White 2011 1 7 0 2 1900 2009 38 since 1900 Church White 2011 1 9 0 4 1961 2009 190 since 1960 Church White 2011 1 43 0 14 1881 1980 152 Barnett 1984 2 27 0 23 1930 1980 152 Barnett 1984 1 2 0 3 1880 1982 130 Gornitz and Lebedeff 1987 2 4 0 9 1920 1970

    Original URL path: http://sealevel.colorado.edu/content/tide-gauge-sea-level (2012-11-11)
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  • Steric-Related Sea Level Change Estimates | CU Sea Level Research Group
    i e zero crossing or base year of the GMSL plots Why is the GMSL different than local tide gauge measurements All FAQs Sea Level Links AVISO CLS Radar Altimetry Tutorial CSIRO GFZ GRACE Global Sea Level Observing System GLOSS JPL GRACE Tellus JPL Ocean Surface Topography LEGOS CTOH NASA EO World of Change NASA Global Climate Change NOAA Satellite Altimetry Permanent Service for Mean Sea Level PSMSL Radar Altimeter Database RADS UT CSR GRACE Steric Related Sea Level Change Estimates Edited 2011 02 22 Share Reference Steric sea level change w RMS errors mm yr Period Depth range m Data source Antonov et al 2005 0 40 0 05 1955 1998 0 3000 Levitus et al 2005 Antonov et al 2005 0 34 0 04 1955 2003 0 700 Levitus et al 2005 Ishii et al 2005 0 38 0 04 1955 2003 0 700 Ishii et al 2005 Antonov et al 2005 1 23 0 2 1993 2003 0 700 Levitus et al 2005 Ishii et al 2005 1 8 0 2 1993 2003 0 700 Ishii et al 2005 Willis et al 2004 1 6 0 3 1993 2003 0 750 Willis et al 2004 CU Sea Level Blog Senate Committee Hearing on Impacts of Rising Sea Levels on Domestic Infrastructures NASA mission takes stock of Earth s melting land ice NASA Satellites Detect Pothole on Road to Higher Seas more Our Publications The 2011 La Niña So strong the oceans fell Is there a 60 year oscillation in global mean sea level Comparison of Global Mean Sea Level Time Series from TOPEX Poseidon Jason 1 and Jason 2 Reconstructing sea level using cyclostationary empirical orthogonal functions more Recent Sea Level Articles Mixed layer heat budget of the El Niño in NCEP climate forecast system A demonstration

    Original URL path: http://sealevel.colorado.edu/content/steric-related-sea-level-change-estimates (2012-11-11)
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  • CU Sea Level Library | CU Sea Level Research Group
    level prediction Advances in Space Research 50 no 8 2012 1099 1106 Abstract Tagged XML BibTex Google Scholar Chambers D M Merrifield and R S Nerem Is there a 60 year oscillation in global mean sea level Geophysical Research Letters 39 no 18 2012 Abstract Tagged XML BibTex Google Scholar Becker M B Meyssignac C Letetrel W Llovel A Cazenave and T Delcroix Sea level variations at tropical Pacific islands since 1950 Global and Planetary Change 80 81 2012 85 98 Abstract Tagged XML BibTex Google Scholar García F M I Vigo D García García and J M Sánchez Reales Combination of Multisatellite Altimetry and Tide Gauge Data for Determining Vertical Crustal Movements along Northern Mediterranean Coast Pure and Applied Geophysics 169 no 8 2012 1411 1423 Abstract Tagged XML BibTex Google Scholar Masters D R S Nerem C Choe E Leuliette B Beckley N White and M Ablain Comparison of Global Mean Sea Level Time Series from TOPEX Poseidon Jason 1 and Jason 2 Marine Geodesy 2012 120830133821002 Abstract Tagged XML BibTex Google Scholar Li F Y H Jo W Liu and X H Yan A dipole pattern of the sea surface height anomaly in the North Atlantic 1990s 2000s Geophysical Research Letters 39 no 15 2012 Abstract Tagged XML BibTex Google Scholar Colberg F and K McInnes The impact of future changes in weather patterns on extreme sea levels over southern Australia Journal of Geophysical Research 117 no C8 2012 Abstract Tagged XML BibTex Google Scholar Rahmstorf S M Perrette and M Vermeer Testing the robustness of semi empirical sea level projections Climate Dynamics 39 no 3 4 2012 861 875 Abstract Tagged XML BibTex Google Scholar Baur O M Kuhn and W Featherstone Continental mass change from GRACE over 2002 2011 and its impact on sea level Journal of Geodesy 2012 Abstract Tagged XML BibTex Google Scholar Nidheesh A M Lengaigne J Vialard A Unnikrishnan and H Dayan Decadal and long term sea level variability in the tropical Indo Pacific Ocean Climate Dynamics 2012 Abstract Tagged XML BibTex Google Scholar Flament T and F Remy Dynamic thinning of Antarctic glaciers from along track repeat radar altimetry Journal of Glaciology 58 no 211 2012 830 840 Abstract Tagged XML BibTex Google Scholar Merrifield M P Thompson and M Lander Multidecadal sea level anomalies and trends in the western tropical Pacific Geophysical Research Letters 39 no 13 2012 Abstract Tagged XML BibTex Google Scholar King M M Keshin P Whitehouse I Thomas G Milne and R Riva Regional biases in absolute sea level estimates from tide gauge data due to residual unmodeled vertical land movement Geophysical Research Letters 39 no 14 2012 Abstract Tagged XML BibTex Google Scholar Meehl G A Hu C Tebaldi J Arblaster W Washington H Teng B Sanderson T Ault W Strand and J White Relative outcomes of climate change mitigation related to global temperature versus sea level rise Nature Climate Change 2 no 8 2012 576 580 Abstract Tagged XML BibTex Google Scholar Prandi

    Original URL path: http://sealevel.colorado.edu/biblio (2012-11-11)
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