Table 4 Definitions and provenance of calculated timeseries variables.
From: The metabolic regimes of 356 rivers in the United States
Variable Name | Description (Units) | Sources | Equation or streamMetabolizer function |
|---|---|---|---|
baro_calcElev | Surface pressure (Pa) | altitude | calc_air_pressure() |
depth_calcDischHarvey | Stream depth (m) | c and f 23, disch_nwis | c×disch_nwisf |
depth_calcDischRaymond | Stream depth (m) | c and f 56, disch_nwis | c×disch_nwisf |
dischdaily_calcDMean | Daily average discharge (m3 s−1) | disch_nwis | Daily mean (4am-3:59am) |
doamp_calcDAmp | Daily amplitude in percent O2 saturation (%) | dopsat_calcObsSat | Daily range (4am-3:59am) |
dopsat_calcObsSat | Percent O2 saturation (%) | doobs_nwis, dosat_calcGGbts | 100×doobs_nwis/dosat_calcGGbts |
dosat_calcGGbconst | [O2] at saturation (mgO2 L−1) | baro_calcElev | calc_DO_sat() |
dosat_calcGGbts | [O2] at saturation (mgO2 L−1) | baro_nldas or baro_gldas | calc_DO_sat() |
par_calcLat | Photosynthetic photon flux density, PPFD (μ mol m−2 s−1) | suntime_calcLon, latitude | calc_light() |
par_calcLatSw | PPFD (μ mol m−2 s−1) | par_calcLat, par_calcSw | calc_light_merged() |
par_calcSw | PPFD (μ mol m−2 s−1) | sw_nldas or sw_gldas | convert_PAR_to_SW() |
sitedate_calcLon | Solar noon of the date (unitless) | DateTime | convert_UTC_to-_solartime() |
sitetime_calcLon | Mean solar time (unitless) | DateTime, longitude | convert_UTC_to-_solartime() |
suntime_calcLon | Apparent solar time (unitless) | DateTime, coordinates | convert_UTC_to-_solartime() |
swdaily_calcDMean | Daily average downwards shortwave radiation flux (W m−2) | sw_nldas or sw_gldas | Daily mean (4am-3:59am) |
veloc_calcDischHarvey | Stream velocity (m s−1) | k and m23, disch_nwis | k×disch_nwism |
veloc_calcDischRaymond | Stream velocity (m s−1) | k and m56, disch_nwis | k×disch_nwism |
velocdaily_calcDMean | Daily average velocity (m s−1) | veloc_calcDischHarvey or veloc_calcDischRaymond | Daily mean (4am-3:59am) |
