I hope to find you safe an well during these times.
I am comparing nitrogen outputs with reported values from USGS stations. In APEX documentation there are two main outputs for Nitrogen; YN-Sediment transported N from subarea or reach and QN-Nitrogen in runoff. From USGS I am obtaining the following ones.
mg/l as N and mg/l as NO3
mg/l as N and mg/l asNO2
- Nitrogen, mixed
forms (NH3), (NH4), organic, (NO2) and (NO3): mg/l
mg/l as N and mg/l NH4
nitrogen (nitrate and nitrite):
mg/l as N
- Kjeldahl nitrogen: mg/l
I am comparing QN from APEX with Nitrate as NO3 from USGS.
I would like to ask you kindly if I am right or if you have any suggestion related to other comparisons I can do.
Thanks in advance for your help.