Each record in the original GFDL format contains all variables for a specific grid point. The variables by position in the records are listed below. More than one (usually 9) variable numbers for one variable indicates that the variable is available on the various sigma layers from the model from top (level 1) to bottom (level 9). Note that there is some variation of this list in different model runs. The list of 170 variables below applies to the R30 runs. Variable Model Number Variable Units Type -------- -------- ----- ----- 1-9 U(1-9) cm/sec all 10-18 V(1-9) cm/sec all 19-27 T(1-9) deg K all 28-36 R(1-9)(mixing ratio) gm/gm M(moisture) 37 PSTAR(surface pressure) dynes/cm**2 all 38 LSEA(land sea flag) 1=sea / 0=land all 39-46 WBAR(1-8)(vert pres vel) 1/sec all 47-55 W(1-9) dynes/(cm**2)*sec all 56-64 RAD(1-9)(total net rad) deg K/sec R(radiation) 65 ZSTAR(land elevation) cm all 66 TSTAR(skin temp) deg K all 67 SLWP(net rad at grnd) ly/min R 68 PRECIP cm/day all 69 EVAP(includes sublim) cm/day M 70 SNOWFL(water equiv) cm/day M 71 SOILM(soil moisture) cm H(hydrology) 72 RUNOFF cm/day H 73 SNWDPT(water equiv) cm H 74 SNWMLT(water equiv) cm/day H 75 CALB(sfc albedo,snow) fraction (0-1) R 76 SUBLIM cm/day M 77 YCEMLT(land only) cm/day H 78-86 VFU(1-9) cm/sec**2 all 87-95 VFV(1-9) cm/sec**2 all 96-104 VFT(1-9) deg K/sec all 105-113 VFR(1-9) 1/sec M 114 ZSNIT(net solar, top) ly/min R 115 ZTUFXT(net lw, top) ly/min R 116 ZSNG(net solar, grnd) ly/min R 117 ZUFXNT(net lw,grnd) ly/min R 118 ZSHFX(sensible heat flx) ly/min R 119 ZALTNT(do not use) ly/min M 120-128 CONVT(temp change, cond) deg K/time step all 129-137 CONVR(mx ratio change) 1/time step M 138-146 spare 147-155 RH(1-9) fraction (0-1) M 156 TOCN deg K mixed layer 157 YCETHK(ice thickness) cm mixed layer 158 QAO ly/min mixed layer 159 SNO(snow fall rate) cm/sec (water equiv) mixed layer 160 YCEMLT(ice melt) cm/day mixed layer 161-170 CLOUD (1-9 and total) fraction prediction The 9 sigma layers in the GFDL model are: 1 .025 6 .680 2 .095 7 .830 3 .205 8 .940 4 .350 9 .990 5 .515