Antarctic Ice Shelf Thickness Change and Bottom Melt Rates from NASA/CECS Antarctic Ice Mapping and NASA Operation IceBridge

• Main Author: Sutterley, Tyler
• Format: Dataset
• Language: unknown
• Published: figshare 2019
• Subjects: 40602 Glaciology; FOS Earth and related environmental sciences; 90905 Photogrammetry and Remote Sensing; FOS Environmental engineering; Antarctic; Antarc*; Ice Shelf
• Online Access: https://dx.doi.org/10.6084/m9.figshare.8159852.v1; https://figshare.com/articles/Antarctic_Ice_Shelf_Thickness_Change_and_Bottom_Melt_Rates_from_NASA_CECS_Antarctic_Ice_Mapping_and_NASA_Operation_IceBridge/8159852/1

HDF5 files with data from NASA/CECS Antarctic ice mapping and NASA Operation IceBridge campaigns.Contains elevation and co-registered triangulated data processed in a Lagrangian reference frame along with geophysical corrections and derived values. HDF5 data variables: DH_Dt: Ice thickness change rate [m/yr]DH_Dt_sigma: Ice thickness change rate uncertainty [m/yr]bmr: Bottom melt rate calculated using mass conservation [m/yr]bmr_sigma: Bottom melt rate uncertainty [m/yr]h: Uncorrected surface elevation [m]h_sigma: Surface elevation error [m]dh_dx: Surface slope in easting direction [unitless]dh_dy: Surface slope in northing direction [unitless]longitude: Longitude of measurement [degrees east]latitude: Latitude of measurement [degrees north]delta_time: Acquisition time measured as seconds elapsed since January 1, 2000 12:00:00 UTC (J2000 seconds)tide_ocean: Ocean tide elevation from CATS2008 harmonic constants at the measurement position at the acquisition time [m]tide_load: Load tide elevation from CATS2008 harmonic constants at the measurement position at the acquisition time [m]tide_pole: Solid earth pole tide displacements at the measurement position at the acquisition time [m]tide_oc_pole: Ocean pole tide radial displacements at the measurement position at the acquisition time [m]dac: Dynamic atmospheric correction which includes inverse barometer (IB) effects located at the measurement position at the acquisition time [m]adt: Absolute dynamic topography (calculated by adding the mean dynamic topography to the sea level anomalies) [m]mdt: Mean dynamic topography (sea surface height above geoid) [m]sla: Sea level anomaly located at the measurement position at the acquisition time [m]geoid_h: Geoid height computed from GGM05 gravity model [m]ITRF: Offset to translate to 2014 reference frame [m]IQR: Mask calculated using a interquartile range algorithm (Pritchard et al., 2009)RDE: Mask calculated using a robust dispersion estimator algorithm (Smith et al., 2017)track: ATM icessn track number (0=nadir) Disclaimer: This data provided here is not sponsored or maintained by the Universities Space Research Association (USRA) or NASA. It is provided here under a Creative Commons 4.0 license but with no guarantees whatsoever.