Trends Table

Key to column headings:
STAID = USGS Station ID
PCODE = Parameter code:
P00600 = Total nitrogen
P00630 or P00631 = Nitrate
P00665 = Total phosphorus
P00671 = Dissolved inorganic phosphorus (orthophosphorus)
P80154 = Suspended sediment
START_YEAR = First water year of modeling period used to estimate load
END_YEAR = Last water year of modeling period used to estimate load
NYEARS = Length of period over which trend is computed, in years, through 2014
PERIOD = Short-term or Long-term, based on NYEARS
lowF = Lower confidence limit (95%) of estF
estF = Estimate of flow-normalized load change in NYEARS period, in 10^6 kg/yr
upF = Upper confidence limit (95%) of estF
FNT = Flow-normalized load trend, estF, relative to the base year load, in percent
Trenddir = Trend direction, with 3 categories: No Trend, Degrading, Improving
Likelihood = Likelihood of trend direction, with 4 categories: as Likely as Not, Likely, Very Likely, Extremely Likely

note1: reported results were from WRTDS model
ref: Hirsch and others, Environmental Modelling & Software 2015, https://dx.doi.org/10.1016/j.envsoft.2015.07.017

Download Entire Trends Table

Select Station:	ALL
Select Parameter:	ALL P00600 -- Total nitrogen (mg/L as N) P00631 -- Dissolved nitrite-plus-nitrate nitrogen (mg/L as N) P00665 -- Total phosphorus (mg/L as P) P00671 -- Dissolved orthophosphate (mg/L as P) P80154 -- Total suspended sediment (mg/L)
Select Period:	ALL Short-term Long-Term

STAID	PCODE	START_YEAR	END_YEAR	NYEARS	PERIOD	lowF	estF	upF	FNT	Trenddir	Likelihood