Online Links:
Core/meta/samples.txt 1 Trap sample id Core/meta/samples.txt 2 Lab No. (GRL-) Core/meta/samples.txt 3 Days out Core/meta/samples.txt 4 Problem? Core/meta/trapsite.txt 1 trap Core/meta/trapsite.txt 2 latitude Core/meta/trapsite.txt 3 longitude Core/meta/trapsite.txt 4 elevation (m) Core/meta/trapsite.txt 5 geographic area Core/meta/trapsite.txt 6 transect (km)* Core/meta/trapsite.txt 7 primary source source** Core/meta/trapsite.txt 8 primary source lithology*** Core/meta/trapsite.txt 9 secondary source source** Core/meta/trapsite.txt 10 secondary source lithology** Core/raw/labdust.txt 1 Trap sample id Core/raw/labdust.txt 2 Lab# (GRL-) Core/raw/labdust.txt 3 Days out Core/raw/labdust.txt 4 Organic carbon % Core/raw/labdust.txt 5 Organic matter % Core/raw/labdust.txt 6 %CaCO3 (total) Core/raw/labdust.txt 7 %CaCO3 (OM-free) Core/raw/labdust.txt 8 %salts (total) Core/raw/labdust.txt 9 %salts (OM-free) Core/raw/labdust.txt 10 %gypsum (total) Core/raw/labdust.txt 11 %gypsum (OM-free) Core/raw/labdust.txt 12 Mineral wt (g)** Core/raw/labdust.txt 13 % <2mm Core/raw/labdust.txt 14 sand % of <2mm fraction Core/raw/labdust.txt 15 silt % of <2mm fraction Core/raw/labdust.txt 16 clay % of <2mm fraction Core/raw/labdust.txt 17 textural class Core/raw/flux.txt 1 Trap Core/raw/flux.txt 2 CO3 Core/raw/flux.txt 3 salt Core/raw/flux.txt 4 gypsum Core/raw/flux.txt 5 min_wgt_Q Core/raw/flux.txt 6 min_wgt Core/raw/flux.txt 7 dustflux_Q Core/raw/flux.txt 8 dustflux Core/raw/flux.txt 9 CO3_flux_Q Core/raw/flux.txt 10 CO3_flux Core/raw/flux.txt 11 saltflux_Q Core/raw/flux.txt 12 saltflux Core/raw/flux.txt 13 gypsflux_Q Core/raw/flux.txt 14 gypsflux Core/raw/flux.txt 15 sandflux_Q Core/raw/flux.txt 16 sandflux Core/raw/flux.txt 17 siltflux_Q Core/raw/flux.txt 18 siltflux Core/raw/flux.txt 19 clayflux_Q Core/raw/flux.txt 20 clayflux Core/raw/flux_avg.txt 1 Trap Core/raw/flux_avg.txt 2 CO3_avg Core/raw/flux_avg.txt 3 salt_avg Core/raw/flux_avg.txt 4 gypsum_avg Core/raw/flux_avg.txt 5 min_wgt_avg Core/raw/flux_avg.txt 6 min_wgt_sel_avg Core/raw/flux_avg.txt 7 dustflux_avg Core/raw/flux_avg.txt 8 dustflux_sel_avg Core/raw/flux_avg.txt 9 CO3_flux_avg Core/raw/flux_avg.txt 10 CO3_flux_sel_avg Core/raw/flux_avg.txt 11 saltflux_avg Core/raw/flux_avg.txt 12 saltflux_sel_avg Core/raw/flux_avg.txt 13 gypsflux_avg Core/raw/flux_avg.txt 14 gypsflux_sel_avg Core/raw/flux_avg.txt 15 sandflux_avg Core/raw/flux_avg.txt 16 sandflux_sel_avg Core/raw/flux_avg.txt 17 siltflux_avg Core/raw/flux_avg.txt 18 siltflux_sel_avg Core/raw/flux_avg.txt 19 clayflux_avg Core/raw/flux_avg.txt 20 clayflux_sel_avg Core/raw/flux/CO3.txt 1 Trap Core/raw/flux/CO3.txt 2 1985 Core/raw/flux/CO3.txt 3 1986 Core/raw/flux/CO3.txt 4 1987 Core/raw/flux/CO3.txt 5 1988 Core/raw/flux/CO3.txt 6 1989 Core/raw/flux/CO3.txt 7 average Core/raw/flux/CO3.txt 8 Selected average Core/raw/flux/salt.txt 1 Trap Core/raw/flux/salt.txt 2 1985 Core/raw/flux/salt.txt 3 1986 Core/raw/flux/salt.txt 4 1987 Core/raw/flux/salt.txt 5 1988 Core/raw/flux/salt.txt 6 1989 Core/raw/flux/salt.txt 7 average Core/raw/flux/salt.txt 8 Selected average Core/raw/flux/gypsum.txt 1 Trap Core/raw/flux/gypsum.txt 2 1985 Core/raw/flux/gypsum.txt 3 1986 Core/raw/flux/gypsum.txt 4 1987 Core/raw/flux/gypsum.txt 5 1988 Core/raw/flux/gypsum.txt 6 1989 Core/raw/flux/gypsum.txt 7 average Core/raw/flux/gypsum.txt 8 Selected average Core/raw/flux/min_wgt.txt 1 Trap Core/raw/flux/min_wgt.txt 2 Q85 Core/raw/flux/min_wgt.txt 3 1985 Core/raw/flux/min_wgt.txt 4 Q86 Core/raw/flux/min_wgt.txt 5 1986 Core/raw/flux/min_wgt.txt 6 Q87 Core/raw/flux/min_wgt.txt 7 1987 Core/raw/flux/min_wgt.txt 8 Q88 Core/raw/flux/min_wgt.txt 9 1988 Core/raw/flux/min_wgt.txt 10 Q89 Core/raw/flux/min_wgt.txt 11 1989 Core/raw/flux/min_wgt.txt 12 average Core/raw/flux/min_wgt.txt 13 Selected average Core/raw/flux/CO3_flux.txt 1 Trap Core/raw/flux/CO3_flux.txt 2 Q85 Core/raw/flux/CO3_flux.txt 3 1985 Core/raw/flux/CO3_flux.txt 4 Q86 Core/raw/flux/CO3_flux.txt 5 1986 Core/raw/flux/CO3_flux.txt 6 Q87 Core/raw/flux/CO3_flux.txt 7 1987 Core/raw/flux/CO3_flux.txt 8 Q88 Core/raw/flux/CO3_flux.txt 9 1988 Core/raw/flux/CO3_flux.txt 10 Q89 Core/raw/flux/CO3_flux.txt 11 1989 Core/raw/flux/CO3_flux.txt 12 average Core/raw/flux/CO3_flux.txt 13 Selected average Core/raw/flux/saltflux.txt 1 Trap Core/raw/flux/saltflux.txt 2 Q85 Core/raw/flux/saltflux.txt 3 1985 Core/raw/flux/saltflux.txt 4 Q86 Core/raw/flux/saltflux.txt 5 1986 Core/raw/flux/saltflux.txt 6 Q87 Core/raw/flux/saltflux.txt 7 1987 Core/raw/flux/saltflux.txt 8 Q88 Core/raw/flux/saltflux.txt 9 1988 Core/raw/flux/saltflux.txt 10 Q89 Core/raw/flux/saltflux.txt 11 1989 Core/raw/flux/saltflux.txt 12 average Core/raw/flux/saltflux.txt 13 Selected average Core/raw/flux/gypsflux.txt 1 Trap Core/raw/flux/gypsflux.txt 2 Q85 Core/raw/flux/gypsflux.txt 3 1985 Core/raw/flux/gypsflux.txt 4 Q86 Core/raw/flux/gypsflux.txt 5 1986 Core/raw/flux/gypsflux.txt 6 Q87 Core/raw/flux/gypsflux.txt 7 1987 Core/raw/flux/gypsflux.txt 8 Q88 Core/raw/flux/gypsflux.txt 9 1988 Core/raw/flux/gypsflux.txt 10 Q89 Core/raw/flux/gypsflux.txt 11 1989 Core/raw/flux/gypsflux.txt 12 average Core/raw/flux/gypsflux.txt 13 Selected average Core/raw/flux/dustflux.txt 1 Trap Core/raw/flux/dustflux.txt 2 Q85 Core/raw/flux/dustflux.txt 3 1985 Core/raw/flux/dustflux.txt 4 Q86 Core/raw/flux/dustflux.txt 5 1986 Core/raw/flux/dustflux.txt 6 Q87 Core/raw/flux/dustflux.txt 7 1987 Core/raw/flux/dustflux.txt 8 Q88 Core/raw/flux/dustflux.txt 9 1988 Core/raw/flux/dustflux.txt 10 Q89 Core/raw/flux/dustflux.txt 11 1989 Core/raw/flux/dustflux.txt 12 average Core/raw/flux/dustflux.txt 13 Selected average Core/raw/flux/sandflux.txt 1 Trap Core/raw/flux/sandflux.txt 2 Q85 Core/raw/flux/sandflux.txt 3 1985 Core/raw/flux/sandflux.txt 4 Q86 Core/raw/flux/sandflux.txt 5 1986 Core/raw/flux/sandflux.txt 6 Q87 Core/raw/flux/sandflux.txt 7 1987 Core/raw/flux/sandflux.txt 8 Q88 Core/raw/flux/sandflux.txt 9 1988 Core/raw/flux/sandflux.txt 10 Q89 Core/raw/flux/sandflux.txt 11 1989 Core/raw/flux/sandflux.txt 12 average Core/raw/flux/sandflux.txt 13 Selected average Core/raw/flux/siltflux.txt 1 Trap Core/raw/flux/siltflux.txt 2 Q85 Core/raw/flux/siltflux.txt 3 1985 Core/raw/flux/siltflux.txt 4 Q86 Core/raw/flux/siltflux.txt 5 1986 Core/raw/flux/siltflux.txt 6 Q87 Core/raw/flux/siltflux.txt 7 1987 Core/raw/flux/siltflux.txt 8 Q88 Core/raw/flux/siltflux.txt 9 1988 Core/raw/flux/siltflux.txt 10 Q89 Core/raw/flux/siltflux.txt 11 1989 Core/raw/flux/siltflux.txt 12 average Core/raw/flux/siltflux.txt 13 Selected average Core/raw/flux/clayflux.txt 1 Trap Core/raw/flux/clayflux.txt 2 Q85 Core/raw/flux/clayflux.txt 3 1985 Core/raw/flux/clayflux.txt 4 Q86 Core/raw/flux/clayflux.txt 5 1986 Core/raw/flux/clayflux.txt 6 Q87 Core/raw/flux/clayflux.txt 7 1987 Core/raw/flux/clayflux.txt 8 Q88 Core/raw/flux/clayflux.txt 9 1988 Core/raw/flux/clayflux.txt 10 Q89 Core/raw/flux/clayflux.txt 11 1989 Core/raw/flux/clayflux.txt 12 average Core/raw/flux/clayflux.txt 13 Selected average Core/raw/minerals/claymin.txt 1 Sample no. Core/raw/minerals/claymin.txt 2 Chlorite Core/raw/minerals/claymin.txt 3 Kaolinite Core/raw/minerals/claymin.txt 4 Mica Core/raw/minerals/claymin.txt 5 Smectite Core/raw/minerals/claymin.txt 6 Mixed-layer Core/raw/minerals/claymin.txt 7 Quartz Core/raw/minerals/claymin.txt 8 Other Core/raw/minerals/sandmin.txt 1 Sample no. Core/raw/minerals/sandmin.txt 2 Quartz Core/raw/minerals/sandmin.txt 3 Anorthoclase Core/raw/minerals/sandmin.txt 4 High-temp sanidine Core/raw/minerals/sandmin.txt 5 High-temp albite Core/raw/minerals/sandmin.txt 6 Anorthite Core/raw/minerals/sandmin.txt 7 Orthoclase Core/raw/minerals/sandmin.txt 8 Microcline Core/raw/minerals/sandmin.txt 9 Low-temp albite Core/raw/minerals/sandmin.txt 10 Muscovite + biotite Core/raw/minerals/sandmin.txt 11 Pyroxene Core/raw/minerals/sandmin.txt 12 Hornblende* Core/raw/minerals/sandmin.txt 13 Dolomite Core/raw/minerals/sandmin.txt 14 Calcite Core/raw/minerals/sandmin.txt 15 Other Core/raw/minerals/siltmin.txt 1 Sample no. Core/raw/minerals/siltmin.txt 2 Quartz Core/raw/minerals/siltmin.txt 3 Anorthoclase Core/raw/minerals/siltmin.txt 4 High-temp sanidine Core/raw/minerals/siltmin.txt 5 High-temp albite Core/raw/minerals/siltmin.txt 6 Anorthite Core/raw/minerals/siltmin.txt 7 Orthoclase Core/raw/minerals/siltmin.txt 8 Microcline Core/raw/minerals/siltmin.txt 9 Low-temp albite Core/raw/minerals/siltmin.txt 10 Muscovite + biotite Core/raw/minerals/siltmin.txt 11 Chlorite Core/raw/minerals/siltmin.txt 12 Apatite Core/raw/minerals/siltmin.txt 13 Pyroxene Core/raw/minerals/siltmin.txt 14 Hornblende* Core/raw/minerals/siltmin.txt 15 Dolomite Core/raw/minerals/siltmin.txt 16 Other Core/raw/minerals/combine.txt 1 combined sample id Core/raw/minerals/combine.txt 2 component sample 1 Core/raw/minerals/combine.txt 3 component sample 2 Core/raw/minerals/combine.txt 4 component sample 3 Core/raw/minerals/combine.txt 5 component sample 4 Core/raw/minerals/combine.txt 6 component sample 5 Core/raw/minerals/combine.txt 7 component sample 6 Core/raw/chemistry/dusticp.txt 1 Traps Core/raw/chemistry/dusticp.txt 2 Si Core/raw/chemistry/dusticp.txt 3 Al Core/raw/chemistry/dusticp.txt 4 Fe Core/raw/chemistry/dusticp.txt 5 Mg Core/raw/chemistry/dusticp.txt 6 Ca Core/raw/chemistry/dusticp.txt 7 Na Core/raw/chemistry/dusticp.txt 8 K Core/raw/chemistry/dusticp.txt 9 Ti Core/raw/chemistry/dusticp.txt 10 Mn Core/raw/chemistry/dusticp.txt 11 Zr Core/raw/chemistry/dustox.txt 1 Traps Core/raw/chemistry/dustox.txt 2 raw SiO2 Core/raw/chemistry/dustox.txt 3 raw Al2O3 Core/raw/chemistry/dustox.txt 4 raw Fe2O3 Core/raw/chemistry/dustox.txt 5 raw MgO Core/raw/chemistry/dustox.txt 6 raw CaO Core/raw/chemistry/dustox.txt 7 raw Na2O Core/raw/chemistry/dustox.txt 8 raw K2O Core/raw/chemistry/dustox.txt 9 raw TiO2 Core/raw/chemistry/dustox.txt 10 raw MnO Core/raw/chemistry/dustox.txt 11 raw ZrO2 Core/raw/chemistry/dustox.txt 12 norm SiO2 Core/raw/chemistry/dustox.txt 13 norm Al2O3 Core/raw/chemistry/dustox.txt 14 norm Fe2O3 Core/raw/chemistry/dustox.txt 15 norm MgO Core/raw/chemistry/dustox.txt 16 norm CaO Core/raw/chemistry/dustox.txt 17 norm Na2O Core/raw/chemistry/dustox.txt 18 norm K2O Core/raw/chemistry/dustox.txt 19 norm TiO2 Core/raw/chemistry/dustox.txt 20 norm MnO Core/raw/chemistry/dustox.txt 21 norm ZrO2 Core/raw/chemistry/dustox.txt 22 Si/Zr02 Core/raw/chemistry/dustox.txt 23 Al/Zr02 Core/raw/chemistry/dustox.txt 24 Fe/Zr02 Core/raw/chemistry/dustox.txt 25 Mg/Zr02 Core/raw/chemistry/dustox.txt 26 Ca/Zr02 Core/raw/chemistry/dustox.txt 27 Na/Zr02 Core/raw/chemistry/dustox.txt 28 K/Zr02 Core/raw/chemistry/dustox.txt 29 Ti/Zr02 Core/raw/chemistry/dustox.txt 30 Mn/Zr02 Core/raw/climate/climreg.txt 1 Station Core/raw/climate/climreg.txt 2 Group Core/raw/climate/climreg.txt 3 Elevation Core/raw/climate/climreg.txt 4 MAT Core/raw/climate/climreg.txt 5 MAP Core/raw/climate/climreg.txt 6 number of yrs<1961 Core/raw/climate/climreg.txt 7 MAT before 1961 Core/raw/climate/climreg.txt 8 number of years1961-90 Core/raw/climate/climreg.txt 9 MAT from 1961-90 Core/raw/climate/climreg.txt 10 number of yrs<1961 Core/raw/climate/climreg.txt 11 MAP before 1961 Core/raw/climate/climreg.txt 12 number of years1961-90 Core/raw/climate/climreg.txt 13 MAP from 1961-90 Core/raw/climate/climreg.txt 14 1961 MAT records 1961 through 1990 Core/raw/climate/climreg.txt 15 1962 Core/raw/climate/climreg.txt 16 1963 Core/raw/climate/climreg.txt 17 1964 Core/raw/climate/climreg.txt 18 1965 Core/raw/climate/climreg.txt 19 1966 Core/raw/climate/climreg.txt 20 1967 Core/raw/climate/climreg.txt 21 1968 Core/raw/climate/climreg.txt 22 1969 Core/raw/climate/climreg.txt 23 1970 Core/raw/climate/climreg.txt 24 1971 Core/raw/climate/climreg.txt 25 1972 Core/raw/climate/climreg.txt 26 1973 Core/raw/climate/climreg.txt 27 1974 Core/raw/climate/climreg.txt 28 1975 Core/raw/climate/climreg.txt 29 1976 Core/raw/climate/climreg.txt 30 1977 Core/raw/climate/climreg.txt 31 1978 Core/raw/climate/climreg.txt 32 1979 Core/raw/climate/climreg.txt 33 1980 Core/raw/climate/climreg.txt 34 1981 Core/raw/climate/climreg.txt 35 1982 Core/raw/climate/climreg.txt 36 1983 Core/raw/climate/climreg.txt 37 1984 Core/raw/climate/climreg.txt 38 1985 Core/raw/climate/climreg.txt 39 1986 Core/raw/climate/climreg.txt 40 1987 Core/raw/climate/climreg.txt 41 1988 Core/raw/climate/climreg.txt 42 1989 Core/raw/climate/climreg.txt 43 1990 Core/raw/climate/climreg.txt 44 1961 MAP records 1961 through 1990 Core/raw/climate/climreg.txt 45 1962 Core/raw/climate/climreg.txt 46 1963 Core/raw/climate/climreg.txt 47 1964 Core/raw/climate/climreg.txt 48 1965 Core/raw/climate/climreg.txt 49 1966 Core/raw/climate/climreg.txt 50 1967 Core/raw/climate/climreg.txt 51 1968 Core/raw/climate/climreg.txt 52 1969 Core/raw/climate/climreg.txt 53 1970 Core/raw/climate/climreg.txt 54 1971 Core/raw/climate/climreg.txt 55 1972 Core/raw/climate/climreg.txt 56 1973 Core/raw/climate/climreg.txt 57 1974 Core/raw/climate/climreg.txt 58 1975 Core/raw/climate/climreg.txt 59 1976 Core/raw/climate/climreg.txt 60 1977 Core/raw/climate/climreg.txt 61 1978 Core/raw/climate/climreg.txt 62 1979 Core/raw/climate/climreg.txt 63 1980 Core/raw/climate/climreg.txt 64 1981 Core/raw/climate/climreg.txt 65 1982 Core/raw/climate/climreg.txt 66 1983 Core/raw/climate/climreg.txt 67 1984 Core/raw/climate/climreg.txt 68 1985 Core/raw/climate/climreg.txt 69 1986 Core/raw/climate/climreg.txt 70 1987 Core/raw/climate/climreg.txt 71 1988 Core/raw/climate/climreg.txt 72 1989 Core/raw/climate/climreg.txt 73 1990 Core/raw/climate/aveclim.txt 1 Station Core/raw/climate/aveclim.txt 2 Time interval Core/raw/climate/aveclim.txt 3 TJan Core/raw/climate/aveclim.txt 4 TFeb Core/raw/climate/aveclim.txt 5 TMar Core/raw/climate/aveclim.txt 6 TApr Core/raw/climate/aveclim.txt 7 TMay Core/raw/climate/aveclim.txt 8 TJun Core/raw/climate/aveclim.txt 9 TJul Core/raw/climate/aveclim.txt 10 TAug Core/raw/climate/aveclim.txt 11 TSep Core/raw/climate/aveclim.txt 12 TOct Core/raw/climate/aveclim.txt 13 TNov Core/raw/climate/aveclim.txt 14 TDec Core/raw/climate/aveclim.txt 15 Mean yearly temperature Core/raw/climate/aveclim.txt 16 PJan Core/raw/climate/aveclim.txt 17 PFeb Core/raw/climate/aveclim.txt 18 PMar Core/raw/climate/aveclim.txt 19 PApr Core/raw/climate/aveclim.txt 20 PMay Core/raw/climate/aveclim.txt 21 PJun Core/raw/climate/aveclim.txt 22 PJul Core/raw/climate/aveclim.txt 23 PAug Core/raw/climate/aveclim.txt 24 PSep Core/raw/climate/aveclim.txt 25 POct Core/raw/climate/aveclim.txt 26 PNov Core/raw/climate/aveclim.txt 27 PDec Core/raw/climate/aveclim.txt 28 Annual total precipitation Core/raw/climate/trapclim.txt 1 Trap Core/raw/climate/trapclim.txt 2 Est MAT (+-1.3C) Core/raw/climate/trapclim.txt 3 Est MAP (cm) Core/raw/climate/trapclim.txt 4 s.e. MAP(cm) Core/raw/climate/trapclim.txt 5 Quiring est. MAP (NTS) Core/raw/climate/trapclim.txt 6 French est MAP (so NV) Core/raw/climate/trapclim.txt 7 WS nearest Core/raw/climate/trapclim.txt 8 WS Elevation (m) Core/raw/climate/trapclim.txt 9 WS MAP (cm) Core/raw/climate/climate.txt 1 Station Core/raw/climate/climate.txt 2 State Core/raw/climate/climate.txt 3 Latitude Core/raw/climate/climate.txt 4 Longitude Core/raw/climate/climate.txt 5 Elevation (m) Core/raw/climate/climate.txt 6 Time interval Core/raw/climate/climate.txt 7 TJan Core/raw/climate/climate.txt 8 TFeb Core/raw/climate/climate.txt 9 TMar Core/raw/climate/climate.txt 10 TApr Core/raw/climate/climate.txt 11 TMay Core/raw/climate/climate.txt 12 TJun Core/raw/climate/climate.txt 13 TJul Core/raw/climate/climate.txt 14 TAug Core/raw/climate/climate.txt 15 TSep Core/raw/climate/climate.txt 16 TOct Core/raw/climate/climate.txt 17 TNov Core/raw/climate/climate.txt 18 TDec Core/raw/climate/climate.txt 19 Mean annual T Core/raw/climate/climate.txt 20 PJan Core/raw/climate/climate.txt 21 PFeb Core/raw/climate/climate.txt 22 PMar Core/raw/climate/climate.txt 23 PApr Core/raw/climate/climate.txt 24 PMay Core/raw/climate/climate.txt 25 PJun Core/raw/climate/climate.txt 26 PJul Core/raw/climate/climate.txt 27 PAug Core/raw/climate/climate.txt 28 PSep Core/raw/climate/climate.txt 29 POct Core/raw/climate/climate.txt 30 PNov Core/raw/climate/climate.txt 31 PDec Core/raw/climate/climate.txt 32 Total P Core/raw/climate/climate.txt 33 PNov-Apr Core/raw/climate/climate.txt 34 PMay-Oct
The purpose of this research is to obtain data on the composition and deposition rate of eolian dust in southern Nevada and California from 1984 to 1989, and to relate these properties to controlling variables such as climate, lithology of local dust source, and type of source. Further work will relate modern dust to soil properties and compare modern rates of dust influx with long-term rates estimated from soils at selected sites.
SiO2 = Si/0.467 Al2O3 = Al/0.529 Fe2O3 = Fe/0.699 MgO = Mg/0.603 CaO = Ca/0.715 Na2O = Na/0.742 K2O = K /0.830 TiO2 = Ti/0.599 MnO = Mn/0.774 ZrO2 = Zr/0.740The percentages of major oxides and zirconium were then recalculated to 100%, excluding water, volatiles, and minor elements, and the ratios of major oxides to ZrO2 are based on the recalculated values.
MAT = -0.0072E+23.4 MAP (interior deserts) = 0.00555E+7.075 MAP (Colo.R.-Salton Sea) = 0.01013+7.468 MAP (SW Calif.) = 0.05E+5.002where E is elevation in meters. For comparison, MAP is also calculated using other published equations. For stations on the Nevada Test Site (T-1 through T-9) I used the equation of Quiring (1983), in which y = MAP in inches and x = elevation in thousands of feet:
y = 1.36x - 0.51For stations in southern Nevada, including the Nevada Test Site, I used the equations of French (1983), in which y = MAP in inches and x = elevation in feet. French (1983) divided southern Nevada roughly into thirds based on the paths of moisture-carrying air masses from the west and south; the eastern third has the most rainfall, the western third has the least, and the central third is intermediate:
Eastern: log y = 0.0000933x + 0.486 Central: log y = 0.0000786x + 0.446 Western: log y = 0.0000365x + 0.505MAP at the closest weather station to the dust-trap site is also given. Estimates of MAP for sites near Los Angeles, including T-51 through T-54, using the equations from this study gave unrealistically low values (see file trapclim.xls) because this area is under a coastal rather than an interior climate. Thus, in the papers written using these data, MAP for these sites is assumed to be about the same as that at the nearest weather station.
LI = (P - PET) summed for each month in which P > PET. PET (Thornthwaite) = F(1.6(10t/I)^a) where t temperature (degrees C) for the month I sum for 12 months of (t/5)^1.514 (given in column "heat factor I") a (6.75*10^(-7) * I^3) - (7.71* 10^(-5) * I^2) + (0.1792 * I) + 0.49239 (given in column "exponent a") F day length factor (from table V in Thornthwaite, 1948) PET (Papadakis) = 5.625 (e_ma - e_d) where e_ma is saturation vapor pressure of monthly average daily maximum temperature (mbars) e_d is monthly average vapor pressure (dew point) (mbars)According to Lindsley and others (1975, p. 35), vapour pressures are calculated by:
e_ma = (33.869(0.00738 (max.T) + 0.8072)^8 - 0.00019 |1.8 (max.T) | + 0.001316) e_d = (33.869(0.00738 (min.T) + 0.8072)^8 - 0.00019 |1.8 (min.T) | + 0.001316)where max.T is the monthly average maximum temperature and min.T is the monthly average minimum temperature.
{\parskip=\medskipamount
$LI = (P - PET)$ summed for each month in which $P > PET$.
$$PET (\hbox{Thornthwaite}) = F(1.6(10t/I)^a)$$
where
$$\halign{\quad # \hfil & \quad # \hfil\cr
$t$ & temperature (degrees C) for the month\cr
$I$ & sum for twelve months of $(t/5)^{1.514}$ (given in column ``heat factor I'')\cr
$a$ & $(6.75 \times 10^{-7}I^3) - (7.71 \times 10^{-5}I^2) + (0.1792I) + 0.49239$ (given in column ``exponent a'')\cr
$F$ & day length factor (from table V in Thornthwaite, 1948)\cr
}$$
$$PET (\hbox{Papadakis}) = 5.625 (e_{ma} - e_d)$$
where
$$\halign{\quad # \hfil & \quad # \hfil\cr
$e_{ma}$ & is the saturation vapor pressure of monthly average daily maximum temperature (in mbar), and \cr
$e_d$ & is the monthly average vapor pressure (dew point) in mbars\cr
}$$
According to Lindsley and others (1975, p. 35), vapor pressures are calculated by:
$$e_{ma} = (33.869(0.00738 (\hbox{max.T}) + 0.8072)^8 - 0.00019 \vert 1.8 (\hbox{max.T}) \vert + 0.001316)$$
$$e_d = (33.869(0.00738 (\hbox{min.T}) + 0.8072)^8 - 0.00019 \vert 1.8 (\hbox{min.T}) \vert + 0.001316)$$
where max.T is the monthly average maximum temperature and min.T is the monthly average minimum temperature.
}
[Editor's note: end of TeX rendition of the equations.]
Are there legal restrictions on access or use of the data?Access_Constraints: none
Use_Constraints: none
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
| Data format: | Dust data in format ASCII tab-delimited |
|---|---|
| Network links: |
http://geo-nsdi.er.usgs.gov/metadata/other/agu-jgr-100-d5/data.zip |