Our sea ice prediction data sources come from the National Snow and Ice Data Center.
Not exact matches
Given that we now have several years more
data, we can essentially «test» the IPCC
predictions and we arrive at the conclusion (i.e., message 1) that the climate system is tracking the «worst case scenario» (or worse in the case of
ice melt and
sea - level rise) presented by the IPCC.
The
data that Old Weather volunteer citizen scientists meticulously transcribe from the logbooks are used to drive climate and
sea ice models to help understand changes and improve
predictions.
PIOMAS has been run in a forward mode (and hence without
data assimilation) to yield seasonal
predictions for the
sea ice outlook (Zhang et al. 2008) and has also provided input to statistical forecasts (Lindsay et al. 2008) and fully - coupled models.
This one at least is consistent with other
data, like the rapid decline of Arctic
sea ice, way ahead of any model
predictions I've seen published prior to the decline.
Canadian
Ice Service, 4.7, Multiple Methods As with CIS contributions in June 2009, 2010, and 2011, the 2012 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter arctic ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Ice Service, 4.7, Multiple Methods As with CIS contributions in June 2009, 2010, and 2011, the 2012 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter arctic
ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT),
Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear
data filter to extrapolate NSIDC's September Arctic
Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR)
prediction system that tests ocean, atmosphere and
sea ice predicto
sea ice predicto
ice predictors.
Canadian
Ice Service, 4.7 (+ / - 0.2), Heuristic / Statistical (same as June) The 2015 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic ice thickness extents, as well as winter Surface Air Temperature, Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Ice Service, 4.7 (+ / - 0.2), Heuristic / Statistical (same as June) The 2015 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic
ice thickness extents, as well as winter Surface Air Temperature, Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
ice thickness extents, as well as winter Surface Air Temperature,
Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear
data filter to extrapolate the September
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR)
prediction system that tests ocean, atmosphere and
sea ice predicto
sea ice predicto
ice predictors.
Since current
ice melt
data could indicate variable climate trends and aren't necessarily part of an accelerating trend, the study warned that
predictions of future
sea - level rise should not be based on measurements of glacial loss» Daily Mail.
Canadian
Ice Service; 5.0; Statistical As with Canadian Ice Service (CIS) contributions in June 2009 and June 2010, the 2011 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic Multi-Year Ice (MYI) extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and sea ice predicto
Ice Service; 5.0; Statistical As with Canadian
Ice Service (CIS) contributions in June 2009 and June 2010, the 2011 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic Multi-Year Ice (MYI) extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and sea ice predicto
Ice Service (CIS) contributions in June 2009 and June 2010, the 2011 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic Multi-Year
Ice (MYI) extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and sea ice predicto
Ice (MYI) extents, as well as an examination of Surface Air Temperature (SAT),
Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and sea ice predicto
Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model which uses an optimal linear
data filter to extrapolate NSIDC's September Arctic
Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere, and sea ice predicto
Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR)
prediction system that tests ocean, atmosphere, and
sea ice predicto
sea ice predicto
ice predictors.
Here's a
prediction from 2007 where a climate scientist predicts that Arctic
sea ice may disappear by 2013, saying that since his modelling didn't include the last couple of record lows in its training
data,» you can argue that may be our projection of 2013 is already too conservative.»
These new
sea ice proxy records are needed (1) to fully prove the scenarios of a succession from an extended
ice shelf to polynya / open - water conditions (cf., Fig. 6), (2) to reconstruct in more detail the changes in
sea ice cover for early, middle and late LIG intervals characterized by very different external forcings and related internal feedback mechanisms, and (3) to allow a more fundamental proxy
data / modeling comparison that results in model improvements and better reproduction of the LIG climatic evolution and
prediction of future climatic scenarios20, 21,22,23, 64.
The ensemble consists of seven members each of which uses a unique set of NCEP / NCAR atmospheric forcing fields from recent years, representing recent climate, such that ensemble member 1 uses 2005 NCEP / NCAR forcing, member 2 uses 2006 forcing..., and member 7 uses 2011 forcing... In addition, the recently available IceBridge and helicopter - based electromagnetic (HEM)
ice thickness quicklook
data are assimilated into the initial 12 - category
sea ice thickness distribution fields in order to improve the initial conditions for the
predictions.
Canadian
Ice Service, 4.7 (± 0.2), Heuristic / Statistical (same as June) The 2015 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic ice thickness extents, as well as winter Surface Air Temperature, Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Ice Service, 4.7 (± 0.2), Heuristic / Statistical (same as June) The 2015 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic
ice thickness extents, as well as winter Surface Air Temperature, Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
ice thickness extents, as well as winter Surface Air Temperature,
Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear data filter to extrapolate the September sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Sea Level Pressure and vector wind anomaly patterns and trends; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear
data filter to extrapolate the September
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
sea ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
ice extent timeseries into the future and 3) a Multiple Linear Regression (MLR)
prediction system that tests ocean, atmosphere and
sea ice predicto
sea ice predicto
ice predictors.
GFDL NOAA (Msadek et al.), 4.82 (4.33 - 5.23), Modeling Our
prediction for the September - averaged Arctic
sea ice extent is 4.82 million square kilometers, with an uncertainty range going between 4.33 and 5.23 million km2 Our estimate is based on the GFDL CM2.1 ensemble forecast system in which both the ocean and atmosphere are initialized on August 1 using a coupled
data assimilation system.
CAS = Commission for Atmospheric Sciences CMDP = Climate Metrics and Diagnostic Panel CMIP = Coupled Model Intercomparison Project DAOS = Working Group on
Data Assimilation and Observing Systems GASS = Global Atmospheric System Studies panel GEWEX = Global Energy and Water Cycle Experiment GLASS = Global Land - Atmosphere System Studies panel GOV = Global Ocean
Data Assimilation Experiment (GODAE) Ocean View JWGFVR = Joint Working Group on Forecast Verification Research MJO - TF = Madden - Julian Oscillation Task Force PDEF = Working Group on Predictability, Dynamics and Ensemble Forecasting PPP = Polar
Prediction Project QPF = Quantitative precipitation forecast S2S = Subseasonal to Seasonal
Prediction Project SPARC = Stratospheric Processes and their Role in Climate TC = Tropical cyclone WCRP = World Climate Research Programme WCRP Grand Science Challenges • Climate Extremes • Clouds, Circulation and Climate Sensitivity • Melting
Ice and Global Consequences • Regional
Sea -
Ice Change and Coastal Impacts • Water Availability WCRP JSC = Joint Scientific Committee WGCM = Working Group on Coupled Modelling WGSIP = Working Group on Subseasonal to Interdecadal
Prediction WWRP = World Weather Research Programme YOPP = Year of Polar
Prediction
Raw model
sea ice concentration
data was processed using a simple linear regression model and satellite derived
ice extent to produce bias corrected
predictions.
Ionita and Grosfeld (IUP Bremen
Data), 4.25 (3.53 - 4.97), Statistical The forecast scheme for the September
sea ice extent is based on a methodology similar to one used for the seasonal
prediction of river streamflow (Ionita et al., 2008, 2014).
As with previous CIS contributions, the 2016 forecast was derived by considering a combination of methods: 1) a qualitative heuristic method based on observed end - of - winter Arctic
ice thickness / extent, as well as winter surface air temperature, spring
ice conditions and the summer temperature forecast; 2) a simple statistical method, Optimal Filtering Based Model (OFBM), that uses an optimal linear
data filter to extrapolate the September
sea ice extent time - series into the future and 3) a Multiple Linear Regression (MLR)
prediction system that tests ocean, atmosphere and
sea ice predictors.
The
prediction model is obtained by
data - adaptive decomposition and inverse modeling of Multisensor Analyzed
Sea Ice Extent — Northern Hemisphere (MASIE - NH) dataset.
Our
prediction is based on the GFDL - FLOR ensemble forecast system, which is a fully - coupled atmosphere - land - ocean -
sea ice model initialized using a coupled
data assimilation system.
SIPN welcomes pre-season contributions with
predictions,
data, field observations, or comments on
sea ice conditions that might include:
The two - day FAMOS workshop will include sessions on 2017
sea ice highlights and
sea ice / ocean
predictions, reports of working groups conducting collaborative projects, large - scale arctic climate modeling (
ice - ocean, regional coupled, global coupled), small (eddies) and very small (mixing) processes and their representation and / or parameterization in models, and new hypotheses,
data sets, intriguing findings, proposals for new experiments and plans for 2018 FAMOS special volume of publications.
So far, the Antarctic is not following the IPCC
prediction (or projection), but the late - summer Arctic
sea ice seems headed for disappearing by the latter part of the 21st century, as you and I have both extrapolated, using the most recent
data.
IPCC
Predictions For Ice Melt, Sea Level Rise Lower Than Observations Then there is the fact that when the IPCC reanalyzes the data — as Climate Progress urges them to do for all sea level rise and ice melt projections — the revised predictions may very well be higher than originall
Predictions For
Ice Melt, Sea Level Rise Lower Than Observations Then there is the fact that when the IPCC reanalyzes the data — as Climate Progress urges them to do for all sea level rise and ice melt projections — the revised predictions may very well be higher than originally expect
Ice Melt,
Sea Level Rise Lower Than Observations Then there is the fact that when the IPCC reanalyzes the data — as Climate Progress urges them to do for all sea level rise and ice melt projections — the revised predictions may very well be higher than originally expect
Sea Level Rise Lower Than Observations Then there is the fact that when the IPCC reanalyzes the
data — as Climate Progress urges them to do for all
sea level rise and ice melt projections — the revised predictions may very well be higher than originally expect
sea level rise and
ice melt projections — the revised predictions may very well be higher than originally expect
ice melt projections — the revised
predictions may very well be higher than originall
predictions may very well be higher than originally expected.
The
Sea Ice Prediction Network (SIPN) announces a call for
Sea Ice Outlook (SIO) contributions to the June report (based on May
data): - The firm submission deadline is 6:00 p.m. (AKDT) on Friday, 12 June 2015.