Show simple item record

dc.contributor.advisorRoberts, Andrew
dc.contributor.authorBench, Kristine N.
dc.date16-Jun
dc.date.accessioned2016-08-02T19:34:02Z
dc.date.available2016-08-02T19:34:02Z
dc.date.issued2016-06
dc.identifier.urihttp://hdl.handle.net/10945/49374
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractSatellites and several specially equipped scientific aircraft provide basin-wide altimetric measurements of sea ice freeboard, from which sea ice thickness can be estimated. Up to now, few methods have been developed to use these measurements to quantitatively assess the skill of predictive models of sea ice for the Arctic. This thesis addresses this problem, using measured freeboard from ICESat and Operation IceBridge (OIB). Output from the Regional Arctic System Model (RASM) is used to demonstrate applicability of both variance- and correlation-weighted skill scores of freeboard that quantify model skill and take measurement error into account. The techniques are demonstrated using two different RASM configurations, one using Elastic-Viscous-Plastic (EVP) ice mechanics, the other using the Elastic- Anisotropic-Plastic (EAP) rheology, both simulated for 2004 and 2007, during which ICESat was in operation. RASM variance skill scores ranged from 0.712 to 0.824 and correlation skill scores were between 0.319 and 0.511. The skill scores were calculated for monthly periods and require little adaption to be applicable for monthly to decadal Navy forecasts of the Arctic. This will help improve sea ice prediction by quantifying model limitations and thus maximize the usefulness of ICESat-2 freeboard measurements after that satellite is launched next year.en_US
dc.description.urihttp://archive.org/details/quantifyingseaso1094549374
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleQuantifying seasonal skill in coupled sea ice models using freeboard measurements from spaceborne laser altimetersen_US
dc.typeThesisen_US
dc.contributor.secondreaderMaslowski, Wieslaw
dc.contributor.departmentOceanographyen_US
dc.subject.authorArcticen_US
dc.subject.authorclimate changeen_US
dc.subject.authorRegional Arctic System Modelen_US
dc.subject.authoraltimetry measurementsen_US
dc.subject.authorsea iceen_US
dc.subject.authorsea ice thicknessen_US
dc.subject.authorfreeboarden_US
dc.subject.authorICESaten_US
dc.subject.authorICESat-2en_US
dc.subject.authorclimate modelen_US
dc.subject.authorcoupled modelen_US
dc.subject.authorOperation IceBridgeen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameMaster of Science in Meteorology and Physical Oceanographyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMeteorology and Physical Oceanographyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record