V2.1.4 L2AS Detailed Release Description September 27, 2001
Algorithm Changes
Change method of selecting radiance pixels to use in aerosol retrieval
over heterogeneous land: select pixels in most oblique cameras first,
instead of largest number of pixels in common.
Change band smoothness masking to apply to all bands instead of
individual bands.
Report NumAcceptSubr as number of subregions of good quality, instead
of number of subregions actually used in final retrieval.
Report HetLandContrast all of the time.
Integrate algorithm to compute LAI/FPAR into software, but turn it off
pending further testing.
Do not use aerosol het. surface retrieval algorithm over areas of 100%
dark water.
Modify algorithm for selecting a default aerosol model to use in land
retrievals when no aerosol models are successful.
Choose het. land aerosol algorithm rather than dark water aerosol
algorithm if land is present.
Bug Fixes
Fix argument check for AS_SU_LP_camera_fill routine.
Fix incorrect computation of land surface QA stats.
Fix range check errors in SMART staging code.
Fix logic for handling case where all eigenvalues are fill.
Add fill values to block metadata in L2AS products.
Fix memory leaks.
Change pressure range check from fatal error to warning.
Aerosol Product Changes
Add ChisqHetSpectral field.
Add NumClearCam field.
Add SfcRetrOptDepth, SfcRetrModel and SfcRetrAlgTypeFlag.
Science Config File Changes
Add min_dw_subr_thresh parameter, and set it to 16.
Make chi-square uncertainty multiplier configurable, and set to 0.05
Change region_topo_complex_thresh from 250 m to 500 m.
