MORSE .res File

Description

Residual spectra, i.e. difference between (measured spectra) − (forward model calculation) after retrieval

Structure

File Structure
! Residual spectra generated by MORSE v. VERSID		Fixed header record
! HDRREC		User-set header record
NPIX NMIC	= No. pixels, microwindows	Dimensions record
For IPIX = 1, NPIX
[Common_Pixel_Header]		3 records
For IMIC = 1, NMIC
[Common_Microwindow_Header]		1 record
IMIC NSWP NPTS	= MW#, NSweeps, NPoints	Dimensions record
For ISWP = 1, NSWP
ISWP	= Sweep index	1 record
FLG(1) FLG(2) ...		Multiple records
... FLG(NPTS)		Multiple records
SPC(1) SPC(2) ...		Multiple records
... SPC(NPTS)		Multiple records

Fields

Field	Format	Description	Range
VERSID	C11	MORSE version identifier
HDRREC	C79	From *HDR section of the driver table
NPIX	I10	No. of pixels or profile locations	≥ 1
NMIC	I10	No. of microwindows used in retrieval	≥ 1
IMIC	I10	Index of microwindow	1 : NMIC
NSWP	I10	No. of sweeps for MW ^[2]	≥ 1
NPTS	I10	No. of spectral points for MW	≥ 1
ISWP	I10	Index of sweep	1 : NSWP
FLG(:)	I2	(NPTS) 1=used point, 0=masked point	1 or 0
SPC(:)	*	(NPTS) Residual spectrum values^[3]

Notes

MORSE generates residuals after each microwindow/sweep is processed, so these are not 'true' residuals since the retrieved profile (and therefore forward model radiance) continues to change after the residuals are output.

NSWP: For nadir-viewing this will be 1. For limb viewing this will be up to a maximum of the number of sweeps within a limb scan (depending on the tangent altitude range over which the microwindow is defined).

SPC: Units are the same as the spectral measurements, i.e. radiance, brightness temperature or transmittance.

Example

morse.res