Item talk:Q227355

{

 "@context": "http://schema.org/",
 "@type": "WebPage",
 "additionalType": "Project",
 "url": "https://www.usgs.gov/centers/california-water-science-center/science/monitoring-and-modeling-nutrients-and-other-water",
 "headline": "Monitoring and Modeling of Nutrients and Other Water-Quality Constituents in Tributaries to Clear Lake, California",
 "datePublished": "April 8, 2022",
 "author": [
   {
     "@type": "Person",
     "name": "Joseph Domagalski",
     "url": "https://www.usgs.gov/staff-profiles/joseph-domagalski",
     "identifier": {
       "@type": "PropertyValue",
       "propertyID": "orcid",
       "value": "0000-0002-6032-757X"
     }
   },
   {
     "@type": "Person",
     "name": "Charles N Alpers",
     "url": "https://www.usgs.gov/staff-profiles/charles-n-alpers",
     "identifier": {
       "@type": "PropertyValue",
       "propertyID": "orcid",
       "value": "0000-0001-6945-7365"
     }
   }
 ],
 "description": [
   {
     "@type": "TextObject",
     "text": "This study is focused on the quantifying the contributions of nutrients and mercury into Clear Lake from its tributaries. Understanding the amounts of these constituents coming from the lake\u2019s watershed is essential for effective remediation (restoration) through implementation of best management practices. The data collected from this monitoring effort will be used to determine the effectiveness of remediation actions and to calibrate watershed models."
   },
   {
     "@type": "TextObject",
     "text": "Clear Lake, the largest natural lake entirely within California, has a severe problem with harmful algal blooms (HABs). HABs can be detrimental to aquatic life because when the algae dies, sinks, and decays, the lake is deprived of the dissolved oxygen that fish need to breathe. A driving factor of these conditions are the nutrient loads being carried into the lake by soil erosion and the transport of sediment from the lake\u2019s tributaries. The recent increase in wildfire size and frequency may also be a contributing factor to additional nutrients being introduced into the lake."
   },
   {
     "@type": "TextObject",
     "text": "Modeling Tasks"
   },
   {
     "@type": "TextObject",
     "text": "Monitoring"
   },
   {
     "@type": "TextObject",
     "text": "Three interpretive reports are planned, describing results from HSPF, SPARROW, and sediment fingerprinting.  USGS data releases (in ScienceBase) will be published as needed to support the interpretive reports."
   },
   {
     "@type": "TextObject",
     "text": "The study\u2019s objectives are to complete watershed monitoring to support two models to be developed by USGS.  A sediment fingerprinting study will be conducted to help determine sources of sediment, total nitrogen, and total phosphorus in tributary streams that drain into Clear Lake, and to support collaborative nutrient and mercury modeling efforts with UC Davis."
   },
   {
     "@type": "TextObject",
     "text": "Objective"
   },
   {
     "@type": "TextObject",
     "text": "In addition to nutrients, Clear Lake has high levels of mercury due to the presence of an inactive mercury mine located on the lake\u2019s southeast shores. Previous work at Clear Lake has shown that the increased algae growth, by depleting oxygen upon its decay, is a key driver to methylation of mercury, further impacting the lake\u2019s food web and ecosystem."
   },
   {
     "@type": "TextObject",
     "text": "Monitoring tasks"
   },
   {
     "@type": "TextObject",
     "text": "Results from the monitoring will be used as a basis for watershed modeling. The objective of the modeling component is to develop a quantitative understanding of sediment, nutrient, and mercury sources within the watershed so that best management practices can be most effectively applied to reducing loads of key constituents that adversely affect water quality in Clear Lake."
   },
   {
     "@type": "TextObject",
     "text": "Approach"
   },
   {
     "@type": "TextObject",
     "text": "The monitoring program includes the construction, operation, and maintenance of four new gaging stations in tributaries to Clear Lake. In addition to continuous data for flow, turbidity, and water temperature to be collected at the four gaging stations, at these and other stations, water samples will be collected and analyzed for nitrogen, phosphorus, and suspended sediment; mercury and methylmercury will be analyzed at selected locations (see map)."
   },
   {
     "@type": "TextObject",
     "text": "The work is divided into tasks under two separate headings: Monitoring and Modeling."
   },
   {
     "@type": "TextObject",
     "text": "Anticipated Products"
   },
   {
     "@type": "TextObject",
     "text": "Modeling"
   }
 ],
 "funder": {
   "@type": "Organization",
   "name": "California Water Science Center",
   "url": "https://www.usgs.gov/centers/california-water-science-center"
 },
 "about": [
   {
     "@type": "Thing",
     "name": "Science Technology"
   },
   {
     "@type": "Thing",
     "name": "Information Systems"
   },
   {
     "@type": "Thing",
     "name": "Methods and Analysis"
   },
   {
     "@type": "Thing",
     "name": "Geology"
   },
   {
     "@type": "Thing",
     "name": "Water"
   },
   {
     "@type": "Thing",
     "name": "Energy"
   },
   {
     "@type": "Thing",
     "name": "Environmental Health"
   }
 ]

}