Nitrogen Flux from Onsite Sewage Disposal Systems (OSDS) - Hawaii
This layer represents the nitrogen flux coming from onsite sewage disposal systems (OSDS) (e.g., cesspools and septic tanks). OSDS point data were obtained from the University of Hawaii at Manoa (UH) (Aly El-Kadi) and the State of Hawaii Department of Health (DOH) (Bob Whittier) that estimates nitrogen flux from each property, or Tax Map Key (TMK) parcel, with OSDS. The Ocean Tipping Points (OTP) project converted the points to raster by summing nutrient flux values within 500-m pixels. A Focal Statistics tool was then used to calculate the total flux within a 1.5-km radius of each offshore pixel. Units are in grams per day per km squared. The area of interest is from the shoreline of the Main Hawaiian Islands extending 5 km offshore and 1 km inshore.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{
"fn": "National Center for Ecological Analysis and Synthesis (NCEAS)",
"@type": "vcard:Contact",
"hasEmail": "mailto:kappel@nceas.ucsb.edu"
}
|
| describedByType | application/octet-steam |
| description | This layer represents the nitrogen flux coming from onsite sewage disposal systems (OSDS) (e.g., cesspools and septic tanks). OSDS point data were obtained from the University of Hawaii at Manoa (UH) (Aly El-Kadi) and the State of Hawaii Department of Health (DOH) (Bob Whittier) that estimates nitrogen flux from each property, or Tax Map Key (TMK) parcel, with OSDS. The Ocean Tipping Points (OTP) project converted the points to raster by summing nutrient flux values within 500-m pixels. A Focal Statistics tool was then used to calculate the total flux within a 1.5-km radius of each offshore pixel. Units are in grams per day per km squared. The area of interest is from the shoreline of the Main Hawaiian Islands extending 5 km offshore and 1 km inshore. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "GeoServer",
"mediaType": "placeholder/value",
"description": "This URL provides access to this dataset via GeoServer, including multiple output formats and an OpenLayers viewer.",
"downloadURL": "https://geo.pacioos.hawaii.edu/geoserver/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "PacIOOS Ocean Tipping Points (OTP) Data Viewer",
"mediaType": "placeholder/value",
"description": "This URL provides a viewer and/or data access for this dataset.",
"downloadURL": "http://pacioos.org/projects/oceantippingpoints/#data",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"mediaType": "placeholder/value",
"downloadURL": "http://oceantippingpoints.org/about-us/people#Carrie",
"describedByType": "application/octet-steam"
}
]
|
| identifier | hi_otp_all_osds_nitrogen |
| isPartOf | Pacific Islands Ocean Observing System (PacIOOS) |
| issued | 2017-03-14T00:00:00.000+00:00 |
| keyword |
[
"Earth Science > Biosphere > Aquatic Ecosystems > Reef Habitat",
"Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Reef > Coral Reef",
"Earth Science > Human Dimensions > Environmental Impacts",
"Earth Science > Human Dimensions > Environmental Impacts > Contaminant Levels/Spills",
"Earth Science > Human Dimensions > Environmental Impacts > Sewage Disposal",
"Earth Science > Human Dimensions > Human Settlements > Coastal Areas",
"Earth Science > Human Dimensions > Sustainability > Environmental Sustainability",
"Earth Science > Oceans > Coastal Processes > Coral Reefs",
"Earth Science > Oceans > Ocean Chemistry > Nitrogen",
"Earth Science > Oceans > Water Quality > Ocean Contaminants",
"Continent > North America > United States Of America > Hawaii",
"Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands",
"PacIOOS > Pacific Islands Ocean Observing System",
"PacIOOS > Pacific Islands Ocean Observing System"
]
|
| landingPage | http://oceantippingpoints.org/about-us/people#Carrie |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2017-03-14T00:00:00.000+00:00 |
| publisher |
{
"name": "Pacific Islands Ocean Observing System (PacIOOS)",
"@type": "org:Organization"
}
|
| spatial | -154.68250665384699,18.848703274150445,-160.29941254176182,22.279162574823264 |
| title | Nitrogen Flux from Onsite Sewage Disposal Systems (OSDS) - Hawaii |
