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  • A new U.S. Geological Survey (USGS) report describes how advanced optical sensor technology is being used in the Mississippi River basin to accurately track the nitrate pulse to the Gulf of Mexico.
    Excessive springtime nitrate runoff from agricultural land and other sources in the Mississippi drainage flows into the Mississippi River and downstream to the Gulf of Mexico. This excess nitrate contributes to the Gulf of Mexico hypoxic zone, an area with low oxygen known commonly as the “dead zone.” NOAA-supported researchers reported that the summer 2014 dead zone covered about 5,052 square miles, an area the size of Connecticut.
    The USGS is using the new sensor technology to collect nitrate concentration data every hour to improve the accuracy of nitrate load estimates to the Gulf of Mexico. The data can also be used to make it easier to detect changes in nitrate levels related to basin management and to track progress toward the goal of reducing the size of the dead zone.
     “High frequency data from these sensors has revealed considerable variability in nitrate concentrations in small rivers and streams,” said Brian Pellerin, USGS researcher. “However, we were surprised to see nitrate concentrations vary by as much as 20 percent in a week in a river as large as the Mississippi River without similar changes in streamflows.”
    These rapid changes are very easy to miss with traditional water-quality monitoring approaches.
    However, hourly information on nitrate levels improves the accuracy and reduces the uncertainty in estimating nitrate loads to the Gulf of Mexico, especially during drought and flood years.
    This high frequency data also provides new insights into timing and magnitude of nitrate flushing from soils during wet and dry conditions.
    For instance, the high frequency data revealed high nitrate concentrations during the spring and early summer of both 2013 and 2014 following the drought of 2012. Nitrate sensors on small streams and large rivers throughout the Mississippi River basin are improving our ability track where the pulses are coming from and forecast when they will arrive at the Gulf.
    The USGS, in cooperation with numerous local, state, and other federal agencies, currently operates over 100 real-time nitrate sensors across the Nation.
    Real-time nitrate monitoring is supported by the USGS National Stream Quality Accounting Network, Cooperative Water Program, and the National Water-Quality Assessment Program.
    The following information was extracted directly from the U.S. Geological Survey (USGS) report. For full details and references, please visit:
    http://ca.water.usgs.gov/pubs/2014/PellerinEtAl2014.pdf

    Abstract
    Accurately quantifying nitrate (NO3–) loading from the Mississippi River is important for predicting summer hypoxia in the Gulf of Mexico and targeting nutrient reduction within the basin. Loads have historically been modeled with regression-based techniques, but recent advances with high frequency NO3– sensors allowed us to evaluate model performance relative to measured loads in the lower Mississippi River. Patterns in NO3– concentrations and loads were observed at daily to annual time steps, with considerable variability in concentration-discharge relationships over the two year study. Differences were particularly accentuated during the 2012 drought and 2013 flood, which resulted in anomalously high NO3– concentrations consistent with a large flush of stored NO3– from soil. The comparison between measured loads and modeled loads (LOADEST, Composite Method, WRTDS) showed underestimates of only 3.5% across the entire study period, but much larger differences at shorter time steps. Absolute differences in loads were typically greatest in the spring and early summer critical to Gulf hypoxia formation, with the largest differences (underestimates) for all models during the flood period of 2013. In additional to improving the accuracy and precision of monthly loads, high frequency NO3– measurements offer additional benefits not available with regression-based or other load estimation techniques.


    For the Full Report with References
    Brian A. Pellerin, Brian A. Bergamaschi, Robert J. Gilliom, Charles G. Crawford, JohnFranco Saraceno, C. Paul Frederick, Bryan D. Downing, and Jennifer C. Murphy, 2014, Mississippi River Nitrate Loads from High Frequency Sensor Measurements and Regression-Based Load Estimation, Environmental Science & Technology 2014 48 (21), 12612-12619,
    http://ca.water.usgs.gov/pubs/2014/PellerinEtAl2014.pdf

    (As published in the November/December 2014 edition of Marine Technology Reporter - http://www.marinetechnologynews.com/Magazine)



     

  • resulted in fewer Coast Guard personnel having large spill experience. Access the full U.S. Coast Guard Report: http://www.uscg.mil/foia/docs/DWH/BPDWH.pdf (As published in the April 2013 edition of Marine News - www.marinelink.com

  • to a variety of products requested by manufacturers to be approved against SOLAS and other relevant standards. The ship owner can quickly download a .pdf format copy of the manufacturer's Type Approval Certificate showing the itemized SOLAS, FSS Code regulations along with class and government approvals

  • and Technology (NIST) has developed a Preliminary Cybersecurity Framework (on the web at http://www.nist.gov/itl/upload/preliminary-cybersecurity-framework.pdf). It provides guidance to public and private organizations on managing cybersecurity risk.  The objective is to encourage organizations to consider

  • on December 19, 2017.  The Commandant’s Action can be found at:  https://media.defense.gov/2017/Dec/21/2001859858/-1/-1/0/EL%20FARO%20 FINAL%20ACTION%20MEMO.pdf. Shortly after the release of these reports, questions immediately arose as to what action the Coast Guard and Congress would take to implement changes

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  • Report”) (http://democrats.naturalresources.house.gov/sites/democrats.naturalresources.house.gov/files/documents/2013-05-10_BP_Spill_DangerousDrillers.pdf ). Among other things, the data demonstrated marked improvement in the number of injuries from offshore accidents, down 50% over the past two years

  • with marine casualty reporting requirements. 79 Fed. Reg. 2466 (January 14, 2014).  The Notice is available at:  http://www.gpo.gov/fdsys/pkg/FR-2014-01-14/pdf/2014-00443.pdf.  The draft NVIC is available at:  http://www.regulations.gov/#!documentDetail;D=USCG-2013-1047-0002.  Comments are due by April 14,

  • . Based on the NOAA report, there is plenty of business out there – literally lurking just under the surface.  http://sanctuaries.noaa.gov/protect/ppw/pdfs/2013_potentiallypollutingwrecks.pdf (As published in the September 2013 edition of Marine Technologies - www.seadiscovery.com) This includes vessels

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    ogy will be a positive for both increasing physical processes. These distinctions ronment. Often we are faced with unique Incident_Analysis_S508C.pdf ) Guid- vessel safety and reducing risk, however, risks in the maritime ? eld, and while ance such as this should be incorporated it requires staying

  • MR May-19#18  offshore wind potential tables PDF present the resource broken)
    May 2019 - Maritime Reporter and Engineering News page: 18

    wind speeds of 7 m/s and greater at a 90-m height, assuming 5 MW of installed capacity per square kilometer of water. The offshore wind potential tables PDF present the resource broken down by annual wind speed, water depth, and distance from shore. Sources: Castle Wind & NREL foundation for offshore wind

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    ef- www.soytransportation.org/newsroom/ContainerizedShippin- ? ciency. Water transportation is the most energy-ef? cient gOnInlandWaterways_FullReport.pdf to read the report. and cost-effective method for moving freight. ModeCapacity (22.5 ton / 787K bushels / Fuel Comparison (for every ton of cargo

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    BY THE NUMBERS https://www.ntsb.gov/investigations/AccidentReports/Reports/SPC1802.pdf www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/CG-CVC/CVC1/AnnualRpt/2017DomesticAnnualReport.pdf January 2019 14 MN MN Jan19 Layout 1-17.indd 14 MN Jan19 Layout 1-17.indd 14 1/9/2019 12:05:44 PM1/9/2019

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    through audits 1/-1/0/EL%20FARO%20 FINAL%20 safety de? ciencies resulting in remov- ment can be found at http://mariners. and trainings. ACTION%20MEMO.pdf. Shortly after ing inspection certi? cates for ? ve ves- coastguard.dodlive.mil/2018/10/01/10- the release of these reports, questions sels. The

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    November 2018 - Maritime Reporter and Engineering News page: 10

    transportation system into the future. https://media.defense.gov/2018/Oct/05/2002049100/-1/-1/1/USCG%20MARITIME%20COMMERCE%20STRATEGIC%20OUTLOOK-RELEASABLE.PDF 10 Maritime Reporter & Engineering News • NOVEMBER 2018 MR #11 (10-17).indd 10 MR #11 (10-17).indd 10 10/30/2018 10:15:26 AM10/30/2018 10:15:26

  • MN Nov-18#90  This is why we 
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    November 2018 - Marine News page: 90

    ech file T nies have a gigantic database. For many, this data is placed make it easily available have improved a lot. This is why we in Word, Excel, PDF and other non-suitable data proces- changed to digital knowledge management in partnership sors. Searching for the right data is then a needlessly

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    so before I even got on scene. information at https://www.marad.dot.gov/wp-content/ This past year was one of the most successful in the Acad- uploads/pdf/Webinar-Presentation-2017.pdf. emy’s history and was marked by many signi? cant mile- stones; including the Academy receiving full reaccredita- You

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    October 2018 - Marine News page: 14

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  • MR Sep-18#19  data is placed in Word, Excel, PDF and other 
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    always gives the right information. And companies have a gigantic database. For many that is just the beginning. this data is placed in Word, Excel, PDF and other non-suitable data processors. Searching for the Data Intelligence Knowledge Base: Develop right data is then a needlessly complex activity

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  • MP Q4-17#54 , the user can easily download a PDF fle with the top ten 
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  • MN Oct-17#11 .gao.gov/assets/690/686996.pdf
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    October 2017 - Marine News page: 11

    The U.S. Coast Guard’s 2016 Recreational Boating report: http://uscgboating.org/statistics/accident_statistics.php The GAO’s look at U.S. Navy Training Shortcomings: http://www.gao.gov/assets/690/686996.pdf 11 www.marinelink.com MN

  • MN Sep-17#20 .  alt_?  nance_report_? nal.pdf). The Task Committee was)
    September 2017 - Marine News page: 20

    workshops frastructure” ( www.asce.org/uploadedFiles/News_Articles/ conducted throughout the country during 2015 and 2016. alt_? nance_report_? nal.pdf). The Task Committee was The author spoke at one of these workshops in St. Paul, originally established by COPRI in 2015 to evaluate the Minnesota

  • MR Aug-17#14 .heavyliftnews.com/news/30-
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    . that your workforce receive safety in- planning stage, communication among • http://www.heavyliftnews.com/news/30- pdf). This guide presents the required structions in relation to working with an all parties during the execution phase is years-spmt-self-propelled-modular-t

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    without limitation, the competitive 2d99b60e2f31/C27BD95522D37EC4D6FAA53FC091E03C. effect of agreements other than the agreement under review.’’ updated-cg.pdf • Reports fled with the Commission: amends § 40104(a) and expands the ability of the Federal Maritime Commission U.S. House of Representatives: Federal

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    completely updating our web- site to facilitate the ef? cient search and recovery of information. Looking at the site now, everything is available as .pdf ? les but that is not ef? cient. In a few months time this will be transformed into a ‘knowledge center.’ Making in- formation available readily

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    www.uscg.mil/alj/docs/ALJIPP_5830.1_ALJ_Program_ pre-decisional information. When coordinating responses to Investigations_and_Complaints_Against_ALJs.pdf. The directive does not prohibit communications among Freedom of Information Act requests with CG-094, person- nel in the Of? ce of the Chief Administrativ

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    May 2017 - Marine News page: 10

    . See the ASCE’s report card report on inland waterways here: http://www.infrastructurereportcard.org/wp-content/uploads/2017/01/Inland-Waterways-Final.pdf See the NWF’s full report on the inland waterways here: www.nationalwaterwaysfoundation.org/documents/Final%20TTI%20Report%202001-2014%20Approved

  • MR Apr-17#72 MR April 2017 Ad Index:Layout 1  4/6/2017  9:23 AM  Page 1
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Page#Advertiser Website Phone #Page#Advertiser Website Phone #
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    Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+81-3-3502-2041 www.monohakobi.com/ja/wp-content/uploads/2015/03/pdf-smartship_application_platform02.pdf 37Eco Marine Power ”Aquarius Marine Solar Power” .www.ecomarinepower.com/ . . .+81 92 287 9677 53Smith Berger

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    extensive damage. In reviewing casion, the effectiveness of a CO2 is normally limited to that required delayed%20release.pdf the procedures followed as well as the photos of the vessel after the ? re I have determined that, in some cases, one or more openings to the ?

  • MT Apr-17#19  Notebooks electronically via a PDF ? le, in ac- Guard and)
    April 2017 - Marine Technology Reporter page: 19

    to the National Challenge, teams must submit their congressional representatives, ONR, U.S. Navy, U.S. Coast Engineering Notebooks electronically via a PDF ? le, in ac- Guard and other military branch personnel have been invited cordance with required content, format and limitations. The to take part