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Update MW table for current CO2 concentration
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done, WAC 2019 – keep updating
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Add, to constants table, a reference to what has been in use previously. (See Code.amlib as saved 2011, for examples)
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WAC – not sure if needed?
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Ask Teresa and Mike R. to review the discussion re trace-gas units
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done, MR
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Get info from Chris W describing interpolation and time adjustments, for inclusion as an addition to the section on times. Revise section.
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Get place to put algorithm notes, and include links to those additional discussions in this document.
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done WAC
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In algorithm boxes, when variables are referenced, make those references active links to the discussion of the variable
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WAC: mostly done now in Rmd version
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Get description of the history of the C-130 INS, with characteristics for the Litton at least.
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Add history of GPS systems: What was used when (C-130 at least)
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Add/clarify section on height-above-terrain; modify to ref. geoid. Need to change HeightAboveTerrain() script.
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partly done, WAC,
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check/clarify discussion of height-above-geoid and, generally, geopotential vs geometric vs geoid height
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done - WAC
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Add a variable representing geopotential height and change DVALUE to be based on it minus PALT
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WAC - done
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Clarify meaning of mode and status for old GPS units, and if used anymore
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Add new section on ALTC? Info is there in comments. Implement?
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should there be a vertical velocity of the AC based on data-system GPS? ROC as used for reprocessing, and WIR as backup to WIC?
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Check/update sensors used on both aircraft.
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Add to historical description of PCORs, esp. re subroutine references (QCF, MACH_A, ADIFR)
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Add a discussion of the additional corrections to QCR that could make this less sensitive to AOA? Algorithm is developed and documented; implement? Coefficients in ProcessingAlgorithms.pdf are based on ARISTO2016 flight 6.
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WAC - done
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Suggestion: consider ALT_G and avoid ALT for GPS avionics variable
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Consider change to spherical geometry for distance north and east of reference point because range of GV is so great
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need to explain how the two measures of longitude, with high and low resolution, are used together.
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Need to implement the discussion re correction for the displacement of the GPS antenna from the INS. When done, need to add LG=-4.30 m to the attributes for GGVSPD, GGVEW, GGVNS (GV) and get appropriate values for the C-130
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WAC - done
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Get Dick Friesen or someone to review and update the discussion of GPS GSTAT
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Revise the values listed for the complementary-filter feedback to match what is used now – better with lower values than listed
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WAC
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It might be useful to disable the roll test in gpsc.c, now that GPS is better than when this was implemented
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Goodrich Technical Report 5755: should we get permission and post this? (FAAM has it posted)
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(It is posted now)
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In-cloud air T radiometer: could use more detail re the processing algorithm
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Check all the complex M-K section, esp. Tk and DP interp. function
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done - WAC
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Consider changing name to FP_CR2 in preference to MIRRORT_CR2?
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For CONCV_VXL, I think we need cal coefficients and equations used
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For RHOx, the code now uses 216.68 instead of 100000/461.5228=216.674 as specified here; change?
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Check that current code uses the modified PCOR function with humidity correction and early-error corrected
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The PSURF definition references PSFDC; replace with PSXC?
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“ATTACK” and “SSLIP” differ from other “preferred” variables by not having “X” at the end. Consider name change?
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The variable WIC is described as “GPS-corrected” but that is misleading because it is really based, for aircraft motion, solely on GPS in recent usage (where dependence is on GGVSPD). Contrast to WDC/WSC which are really GPS-corrected. Suggest a different name, like “Wind Vector, Vertical Component, using GPS”?
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Re Gerber probe, I didn’t find code for this; need to describe the algorithm.
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It would be useful to update Bulletin 24 re hydrometeor spectrometers, with info from Bansemer and reference to work by Korolev, Strapp, Jensen, etc.
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Is “PMS/CSIRO King” correct? DMT?
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OK - JBJ
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Variables like AS200 have names with “Raw Accumulation” – seems awkward, consider name change? Maybe “Count” per channel?
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add the variables for total counts?
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some additions are needed here: RAFFD, PVOLU, TCNTD (total counts all cells, CDP); housekeeping variables? All: first and last bins? UHSAS: T and P in canister including UPRESS intensity, etc., better in sect 7
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REFF2DC seems mis-named; all others based on 1D sizing from 2D have names involving 2DC
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need Teresa and/or Andy W to check this section
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need to understand and document what te03c.c does, and perhaps move to obsolete?
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Is NO-related discussion OK? is this right: The one named NO2 is actually for NOy?
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In true measurement mode, XNOZA and XNZAF will be near zero – is this right?
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I think the corrected-NO mixing ratio section may need revision?
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“has the provision for the addition of water vapor” – does that mean this is always done, or only sometimes?
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to “0.1-360 s” add “but is typically set to 0.1 s”?
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UPRESS: the attributes for this variable say the units are kPa; is that incorrect? Mike R lists it as hPa.
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resolved
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check signs here for WD and WS; this differs from the section-9 equation … ??
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For EDPC, the <-50 branch looks suspicious and needs checking
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For old cryogenic hygrometer, find and include the 3rd-order equation referenced here
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check Goff-Gratch formulas; there was some ambiguity in what was in B9
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Should include basic equation for SWTC
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re TECO CO: is the direct measurement (ppb) a mass ratio? Need explanation here if so to describe difference between ppb and ppbv
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COCAL: how does this differ from XCOMR? Why is this in the “obsolete” section? Same for O3FS?
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For SCLWC, this is missing crucial information like how accreted mass is obtained from voltage. Couldn’t find the algorithm. Consider Mazin version? Or old one for Wyo KA?
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There are some additional notes regarding obsolete variables, esp. involving FSSP processing, that are not included here.
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WIC, GGALT, etc.
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Review and correct descriptive attributes (e.g., WIC, GGALT, *DGPS
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StdSpeedofSound is wrong; enters ias.c – obsolete now?
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fix Rd in xlate/const.c: calculated with wrong Md, although right one is listed later in routine. (trivial difference)
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Lv defined in xlate/const.c is not latent heat but derivative of latent heat vs T. Used correctly in thetap.c and plwcc.c, but deceptively commented
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Review and approve new AKRD description
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