Table 12 CLIMATE DATA (Linked Table 8) field descriptions.

A

SAMCODE

Sample code. A unique code assigned to each midden sample.

B

SITE

Name of midden site.

C

STATE_OR_PROVINCE

State name for sites in the USA and Mexico, or province name for sites in Canada.

D

COUNTRY

Country name (USA, Mexico, or Canada).

E

BEST_OR_PUB_LATDECDEGCON

Latitude (decimal degrees) used for climate interpolation. These latitude values are from the MIDDEN SAMPLE table (Linked Table 2).

F

BEST_OR_PUB_LONGDECDEGCON

Longitude (decimal degrees) used for climate interpolation. These longitude values are from the MIDDEN SAMPLE table (Linked Table 2).

G

BEST_OR_ELEV(M)1_ELEVATION

Elevation (meters) used for climate interpolation.

H-S

JANT – DECT

January to December monthly mean temperature (°C; 1961–1990 30-year mean).

T

MTCO^a

Mean temperature of the coldest month (°C; 1961–1990 30-year mean).

U

MTWA^a

Mean temperature of the warmest month (°C; 1961–1990 30-year mean).

V

ANNT^a

Mean annual temperature (°C; 1961–1990 30-year mean).

W

TMIN

Absolute minimum temperature (°C; 1951–1980).

X

TMAX

Absolute maximum temperature (°C; 1951–1980).

Y-AJ

JANP – DECP

January to December monthly mean total precipitation (mm; 1961–1990 30-year mean).

AK

ANNP^a

Mean annual total precipitation (mm; 1961–1990 30-year mean).

AL

RAIN^a

Rain (mm) component of mean annual total precipitation.

AM

SNOW^a

Snowfall snow water equivalent (mm) component of mean annual total precipitation.

AN

PET^a

Mean annual potential evapotranspiration (mm).

AO

EET^a

Mean annual equilibrium evapotranspiration (mm).

AP

AET^a

Mean annual actual evapotranspiration (mm).

AQ

ALPHA^a

Annual Priestley-Taylor coefficient (α) calculated as AET divided by EET (dimensionless)⁹⁴.

AR

AETPET

Annual evaporation ratio calculated as AET divided by PET (dimensionless).

AS

MI

Annual moisture index calculated as ANNP divided by PET (dimensionless).

AT

CHILL^a

Chilling period (number of days with temperature < 5 °C).

AU

GDD0^a

Growing-degree days on a 0 °C base.

AV

GDD5^a

Growing-degree days on a 5 °C base.

AW-BH

JANSUN – DECSUN

January to December mean monthly maximum possible sunshine (% of daylength; 1961–1990 30-year mean).

BI-BT

JANDTR – DECDTR

January to December mean monthly diurnal temperature range (°C; 1961–1990 30-year mean).