Site Information |
Site ID |
HOW191 |
Site name |
Howland Ameriflux |
County |
Penobscot |
State abbreviation |
ME |
Latitude; decimal degrees |
45.203963 |
Longitude; decimal degrees |
-68.740041 |
Elevation; m |
68 |
Operating agency |
EPA |
Start date |
09/16/2011 |
End date |
03/31/2019 |
Primary Land Use |
Forest |
Terrain surrounding site |
Rolling |
NADP/NTN site ID |
ME09![](https://www3.epa.gov/castnet/images/exit.gif) |
Distance to nearest NTN site; km |
79.091 |
View Map |
View Map |
|
Graphical Results |
Composition of total nitrogen deposition by species |
![](./charts/icons/HOW191_pctn.png) |
Trends in total nitrogen deposition |
![](./charts/icons/HOW191_totn.png) |
Trends in wet and dry nitrogen deposition |
![](./charts/icons/HOW191_wdn.png) |
Composition of total sulfur deposition by species |
![](./charts/icons/HOW191_pcts.png) |
Trends in total sulfur deposition |
![](./charts/icons/HOW191_tots.png) |
Trends in wet and dry sulfur deposition |
![](./charts/icons/HOW191_wds.png) |
Trend in maximum 8-hour average ozone concentrations |
![](./charts/icons/HOW191_ozone.png) |
|
|
Site History |
OZONE : ZSP order changed to SPZ. |
29-APR-14 |
OZONE : New certification range for site transfer standard |
29-APR-14 |
OZONE : Knock-out bottle removed. |
29-APR-14 |
OZONE : Foam insulation added to sample line. |
29-APR-14 |