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ICESat / GLAS Data

Ice, Cloud, and land Elevation / Geoscience Laser Altimeter System

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Product Format and Definition Changes with Release-19

GLA01-04:

  • i_GainShiftFlg : added to GLA01, partially replacing spare2.
  • i_inst_state : spares changed from 1 to 0 (reflects throughout rest of products).
  • i_boxX : updated description on GLA04_01.
  • i_boxY : updated description on GLA04_01.
  • i_PixInt : updated description on GLA04_01.
  • i_T0_SA : updated description on GLA04_02.
  • i_lrs_RawRow : updated description on GLA04_02.
  • i_lrs_RawCol : updated description on GLA04_02.
  • i_VTCentR : updated description on GLA04_02.
  • i_VTCentC : updated description on GLA04_02.

GLA05:

  • i_parm1 : changed units to 0.0001 volts, 6*(0.0001 volts, 0.01 ns, 0.01 ns)
  • i_parm1 : changed min values to -30, 6*(0, -100000, 0)
  • i_parm1 : changed max values to 30000, 6*(30000, 0, 32766)
  • i_parm2 : changed units to 0.0001 volts, 6*(0.0001 volts, 0.01 ns, 0.01 ns)
  • i_parm2 : changed min values to -30, 6*(0, -100000, 0)
  • i_parm2 : changed max values to 30000, 6*(30000, 0, 32766)
  • i_solnSigmas1 : changed units to 0.0001 volts, 6*(0.0001 volts, 0.001 ns, 0.001 ns); max values to 30000, 6*(30000, 3000, 3000).
  • i_solnSigmas2 : changed units to 0.0001 volts, 6*(0.0001 volts, 0.001 ns, 0.001 ns); max values to 30000, 6*(30000, 3000, 3000).
  • i_parmTr : changed max to 30000, 30000, 4800, 32766.
  • i_PODFixedPos : changed units to 3*(m,mm)
  • i_tpCentX : added, replacing spare7.
  • i_tpCentY : added, replacing spare8.
  • i_tpOrX : added, replacing spare2.
  • i_RMSpulseWd : added, partially replacing spare6.

GLA07-11:

  • i_cld1_mswf : updated documentation on GLA11.
  • i_cld1_od : updated units to unitless*1000 on GLA11.
  • i_aer4_od : updated units to unitless*1000 on GLA11.
  • i_pbl4_od : updated units to unitless*1000 on GLA11.
  • i_surfType : added, partially replacing spare1.

GLA06, 12-15:

  • i_cld1_mswf : updated documentation.
  • i_reflCor_atm : updated name and description.
  • i_AvgElev : removed from GLA13.
  • i_SiRufMaxPk : added, replacing i_AvgElev and spare7 on GLA13.