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NOS-APPROVED TIDE STATIONS TIDES & WATER LEVELS PROGRAM SINCE 1982 SUTRON HAS WORKED CLOSELY WITH NOAA’S NATIONAL OCEAN SERVICE.... to develop Tide Station hardware and software, culminating with our current station configurations. The National Ocean Service (NOS) operates a network of approximately 225 permanent tide and water level measurement stations in support of its Tides and Water Levels Program. Of this total, 54 stations are located on the Great Lakes and connecting waterways. The remainder are located on the tidal waters of the United States and its ter- ritories. In addition, at any given time, another 100 stations may be in operation on a temporary basis. As mandated by the Tides and Water Levels Program, the purpose of each station in the network is to perform and record accurate water level measurements on a regular and uninterrupted basis over long periods of time while main- taining a stable elevation reference. This information is later processed at NOS headquarters in Rockville, Maryland. Subsets of the network also operate in support of other NOS programs and mission responsibilities. In the 1980’s, Sutron designed the next-generation water level measurement system (NGWLMS) to be a stand-alone data acquisition and transmission system. Transmission was be via the GOES satellite system. Design requirements for environmental operations were quite demanding and includ- The National Oceanic and Atmospheric Administration’s ed operations to 300º C, and a high degree of reliability. NOS chooses Sutron’s Tide Stations for accurate & reliable performance. Pictured above is a Sutron NOS installation The units were actually ruggedized computers packaged on the Chesapeake Bay. in a sealed enclosure, incorporating 80C88 processor data acquisition circuitry to support a wide range of instruments and sensors. The system also featured simultaneous com- OWNER National Ocean Service, NOAA, a munication by radio and telephone. division of the US Dept. of Commerce Sutron’s Tide Stations, past and present, are designed to: PURPOSE: Perform and record accurate water Survive in harsh, coastal environments level measurements on a regular and uninterrupted basis over long periods of Support a wide variety of water level monitoring and time while maintaining a stable elevation weather instruments. Sutron’s NOS system handles reference 11 oceanographic/meteorological sensors including wind speed, direction and gust, water current speed EQUIPMENT: 100 + Sutron Tide Station Network and direction, air and water temperature, barometric pressure, water conductivity, dew point, rain fall and COMPLETED: 1982 - on-going solar radiation. CONTACT: Mr. Tom Mero Provide pre-programmed support for all NOS- (301)443-8026 required tidal data processing, including: - 6-Minute GOES self-timed transmissions - 1-Hour GOES self-timed data transmissions CONFIGURATIONS & GAUGES - DQAP (Outlier elimination) water level averaging MAIN STATION 3001-0000-1 - Redundant data transmissions - Tsunami and storm surge data processing and BACK-UP GAUGE 3101-0000-1 transmission REDUNDANT GAUGE 3101-0000-2 Support GOES Satellite and a wide variety of other QUICKLY DEPLOYABLE... telemetry methods HYDROGRAPHICS GAUGE 3102-0000-1 Provide built-in surge protection for all inputs NOTE: BASIC TIDE STATIONS DO NOT INCLUDE SENSORS. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM NOS-APPROVED TIDE STATIONS TIDES & WATER LEVELS PROGRAM TIDAL MEASUREMENT TO NATIONAL OCEAN SERVICE STANDARDS The National Ocean Service (NOS), part of the National Oceanic and Atmospheric Administration (NOAA), has the responsibility to accurately measure tide levels around the perimeter of the United States. NOS ensures that measurements are the most accurate possible by: • Using the best water level instruments available • Providing backup measurements at all sites • Using consistent and proven station installation techniques to ensure uniformity • Using real-time quality control on the measurements NOS meets the need for timely information by using GOES satellite data telemetry from tide stations. Backup telemetry is provided by various forms of telephone communications (e.g. dialup, cellular, CDPD) and line-of-site (LOS) radio. THE ROLE OF SUTRON SOFTWARE NOS will not identify water level measurement hardware as a tide station until it has the following software capability: • Real-time quality control of values used in water level averages • Dial-in report capability • NOS GOES self-timed report format screening is completed the average is recomputed using • Storm surge detection and reporting via the GOES only values within the limits. random transmission facilities • Telemetry multitasking – a tide station MUST be able to communicate over several paths simultaneously DIAL-IN REPORTS Sutron’s XPert loggers support real-time reports generated • Data exchange with a physically separate backup from information stored within the logger. data logger and level gage NOS requires a very specific dial-in (or LOS radio call • Interface to all water level and weather instruments in) report called the “PORTS” Tag. PORTS – Physical commonly used by NOS Oceanographic Real Time System – is a program to provide Sutron tide stations are based on our XPert data logger tide levels to shipping interests. The PORTS Tag report is series. XPerts run the powerful Windows CE multi-tasking a very specific display of water level and weather data operating system. Sutron has taken advantage of Windows collected a special PORTS tide stations. All Sutron XPert CE to equip each tide station with software that meets and loggers can generate PORTS Tag reports. exceeds all of the NOS requirements. Sutron has also worked with NOS to develop a more general-purpose dial-in report. This report formats a text page based on whatever instruments are connected to the REAL-TIME QUALITY CONTROL tide station. Sutron’s XPert loggers contain the NOS developed and approved method for data averaging. Because not all water level measurements are valid, NOS GOES SELF-TIMED REPORT occasional communications glitches or instrument problems FORMAT can result in one or more bad values. NOS uses very All Sutron XPert loggers support the highly-specific data specific averaging techniques for water level measurement. compression methods required to send tide station data via Water levels are reported every six minutes. The reported the GOES satellite system. value is a 3-minute average of levels taken once per second NOS minimizes the bad data problem through a The newest NOS GOES format is controlled by a user- technique called Data Quality Averaging Process or DQAP. created table that allows: A DQAP average is computed in two passes through the • 100 percent control of the message content between sample set. First, a traditional average and standard the NOS-specific header and trailer deviation are computed. Next, each sample is compared with the average plus or minus three standard deviations. • 2 or 3-byte encoding of water levels with scaling If a sample exceeds the test limits it is flagged. When the • 2 or 3-byte encoding of water levels without scaling 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM NOS-APPROVED TIDE STATIONS TIDES & WATER LEVELS PROGRAM • User-defined one or two-byte data identification flags • Instrument specific 2 or 3-byte encoding of data and quality assurance parameters from NOS approved water level instruments such as the AQUATRAK acoustic sensor and the BEI absolute shaft angle encoder • Full control of the amount and type of redundant (past time) data sent with each message • Generation of the new NOS 6- minute interval self-timed GOES transmissions at 300 bps The NOS GOES format is incomparably efficient in terms of information per byte transmitted. Sutron is the ONLY MANUFACTURER that slicing allows the XPert to easily carry on both activities at offers the new 6-minute transmission format on a self-timed one time. A fully configured XPert logger can have up to nine channel, a radical advance for a system that typically COM ports plus a family of input/output modules and all of obtained data every three hours. the COM ports can be active at one time. DATA EXCHANGE WITH BACKUP STORM SURGE DETECTION AND Sutron XPert loggers support “phantom” sensors that do not REPORTING reside locally. XPert supports special communications blocks Sutron XPert loggers offer full support for real-time called GETTag and SENDTag that allow the user to collect detection of events. data from and log values collected on a completely separate XPert logger. The second logger can be connected to the first When such events as sudden changes in water level or by ANY communications path including hard-wire serial, LOS unusually high or low water levels occur, the XPert formats radio, or telephone. special GOES messages and transmits them over an assigned random channel. These random reports, routinely In addition, XPert loggers support remote time synchronization. used for flood and storm warnings, can be sent very quickly A primary tide station is normally equipped with a GOES after an event is detected. satellite transmitter. GOES transmitters make use of GPS- derrived time that is accurate to milliseconds. The primary logger can pass the extremely accurate time to the backup TELEMETRY MULTI-TASKING logger so that time tags match. A Sutron XPert , capable of true multi-tasking, will never NOS uses the phantom sensor capability, along with the time tell a user it is “busy” when it is asked to make a GOES synchronization, to communicate with the tide station backup transmission while a user is receiving a PORTS Tag report gage. over a dialup connection. Preemptive multitasking with time INTERFACE TO ALL WATER LEVEL & WEATHER INSTRUMENTS COMMONLY USED BY NOS XPert data loggers have built-in software to support ALL of the water level sensors commonly used by NOS (or anyone else, for that meatter). Among the sensors supported are: • AQUATRAK acoustic level sensor (all types, including SDI) • Quadrature output shaft angle encoders (all manufacturers including Sutron, DA, Handar, and others) • BEI absolute shaft angle encoder • Miros Air Gap radar sensor (serial output) • All common millivolt-level output pressure transducers such as Druck In addition, XPert software allows interface to all common weather instruments (wind speed and direction, barometric pressure, air temperature, water temperature, relative humidity). 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM NOS-APPROVED TIDE STATIONS TIDES & WATER LEVELS PROGRAM TIDE STATION TEXAS A&M COASTAL INSTALLATION STILLING WELL STATION TEXAS A&M PROJECT 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM TEXAS COASTAL OCEAN OBSERVATION NETWORK TCOON data is primarily used... to establish tidal datums; to provide high-quality water- level information; & to prepare affected communities Wind Anemometer for events such as hurricanes & tropical storms. Radio Antenna SatLink2 - Satellite Transmitter Solar Panel In 1989 the Conrad Blucher Institute for Surveying and Science (CBI) at Texas A&M University-Corpus Christi Xpert - Data Collector commenced installation of a modern state-of-the-art Water Level Sensor water-level measurement system along the Texas coast. In 1991, this network of water level gauges became the Water Quality Sensor TEXAS COASTAL OCEAN OBSERVATION NETWORK Current Meter (TCOON, http://lighthouse.tamucc.edu/TCOON/ HomePage). TCOON is managed under the direction of the Texas General Land Office, in cooperation with the Texas Water Development Board, the U.S. Army Corps of Engineers, and the National Oceanic and Atmospheric Administration (NOAA). The network utilizes the NEXT GENERATION WATER LEVEL MEASUREMENT SYSTEM (NGWLM) developed by NOAA’s National Ocean Service (NOS) and Sutron Corporation for the National Water Level Observation Network. Water- level data and other environmental parameters are OWNER: Texas A&M made available in near-real time via packet radio, cellular telephone, and the Geostationary Operational PURPOSE: To establish tidal datums; to provide Environmental Satellite (GOES). The TCOON system was high-quality water-level information; installed using NOAA criteria for guidance to obtain & to prepare affected communities for reliable water level data and to address legal concerns events such as hurricanes & tropical for the admissibility of the data in the determination of storms. littoral boundaries. EQUIPMENT: Sutron Tide Stations, Sutron’s Xpert The information collected by TCOON has also been Datalogger, Sutron’s SatLink2 GOES used for Transmitter, wide variety of sensors Oil-spill preparation and response DATE: 1989 - on-going Recreation, marine and navigation safety Oceanographic and environmental research, CONTACT: James Rizzo Division of Nearshore Research Coastal engineering and construction Texas A&M University Corpus Christi U.S. Army Corps of Engineers dredging operations 6300 Ocean Drive and management of Texas coastal waterways Corpus Christi, Texas 78412 Ph: (361) 825-5758 The TCOON system has 26 stations , the majority of which are Sutron Tide Stations, in addition to the seven long-term NOAA NOS NWLON stations established and operated by NOS as part of its National Water TEMPERATURE. Additional stations provide WATER Level Observation Network. CURRENT, SALINITY, PH, and DISSOLVED OXYGEN DATA. In addition to WATER LEVEL DATA, most stations This water level and wind data are collected at six-minute provide supplemental data such as WIND SPEED intervals (0.1 hours), all other data are collected at some and DIRECTION, AIR TEMPERATURE, and WATER multiple of the standaed of 6 minutes. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM TEXAS COASTAL OCEAN OBSERVATION NETWORK In order to manage this large volume of data, a database management system has been developed which supplies data to sponsors and the public via the Internet at the Division of Nearshore Research Web site @ http://lighthouse.tamucc.edu and through voice telephone response systems. Several related projects have been established based on the data collection and management systems developed for TCOON. These projects include THE NUECES BAY SALINITY PROJECT - City of Corpus Christi 5 near-real-time water quality monitoring stations measuring parameters such as salinity, dissolved oxygen, and PH. THE CORPUS CHRISTI REAL-TIME NAVIGATION SYSTEM - Port of Corpus Chrisiti A system to provide the Port of Corpus Christi with real-time navigation data such as water level, water currents, and meteorological conditions NATIONAL WEATHER SERVICE OFFSHORE PLATFORM Provides meteorological and wave data to help local forecasters create marine condition forecasts. THE CONRAD BLUCHER INSTITUTE (CBI) FOR SURVEYING AND SCIENCE has developed one of the most sophisticated water level and environmental observation systems available. The system provides data used for hurricane preparedness, littoral boundary definition, water quality monitoring, real-time water level and meteorological monitoring for marine safety, and recreational users of the bays and estuaries of as WATER CURRENT, SALINITY, & DISSOLVED OXYGEN are South Texas. expensive to install and maintain, thus they are deployed at THE HIGH QUALITY OF THE DATA provides the a limited number of sites. The presence of buildings or other potential to expand research initiatives into oil physical structures near a data collection station may prevent spill prevention and response, eustatic sea level, accurate wind measurements, so wind is not measured at and shoreline subsidence monitoring, and a host of these stations. environmental studies related to water quality and The original NGWLM used the highly reliable Sutron 9000 circulation datalogger. Although many are still in operation over 20 years later, they are being replaced with Sutron’s new Tide STATION CONFIGURATIONS Stations using Sutron’s state-of-the-art Xpert Datalogger. Several different CBI-DNR data collection stations and systems collect coastal measurements, however, each SENSOR SAMPLER station consists of... Acoustic transducers for measuring water elevations Sensors to measure various environmental Wind anemometers for wind speed and direction parameters Acoustic doppler current proﬁling instruments A data collection computer for controlling the sensors and temporarily storing data on-site Multiparameter water-quality probes Water current One or more telemetry devices for retrieving data from the station and transmitting it to headquarters Salinity -including satellite, spread-spectrum packet radio, Dissolved oxygen & telephone modem Air & water temperatures Solar panels and batteries for power pH Each station’s instrument configuration is determined Barometric pressure by the purpose of the station and local conditions. For Turbidity example, instruments used to measure parameters such Air gap 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM TEXAS COASTAL OCEAN OBSERVATION NETWORK CBI-DNR’s operations staff performs routine maintenance and calibration of each sensor. All the stations in TCOON and related projects measure environmental parameters at a multiple of six-minute intervals. For example, water-level measurements are taken every six minutes, while other measurements such as salinity or barometric pressure may be made every thirty or sixty minutes. The data are stored on-site in the data collection computer and then transmitted to CBI-DNR by one or more communications channels including satellite, spread-spectrum packet radio, or telephone modem. The choice of communications depends on availability of telephone or radio connections and the degree of need for real-time observations. For example, stations in the Corpus Christi Real-Time Navigation System and Freeport FlowInfo System use line-of-sight packet radios to allow for frequent acquisition of data from the on-site data collection computers-typically downloading new data once every twelve minutes. At stations where radio or telephone connections are not available, satellite transmissions are used to transmit data at hourly or three-hourly intervals. Thus, the time from measurement to acquisition at CBI depends on the measurement interval and the communications medium used. The data arrive at CBI somewhere between six minutes and six hours after measurement. DATA APPLICATIONS INTEGRATED SUBSYSTEMS TIDAL DATUM The need to reduce to a common level depth soundings taken 1. The “data acquisition” subsystem retrieves the data at different stages of the tide during hydrographic surveys from network sensor packages and observation spawned water level datums. Increasingly, the need of platforms. Because of the wide variety of the land surveyor uses this data to determine waterfront communications links and platform hardware used for boundaries by tidal definition. However, at many locations measuring environmental data, the data acquisition the astronomical tide is often masked by local meteorological subsystem is actually a small number of independent conditions and long-term trends in the Gulf of Mexico, which makes standard procedures difficult to apply and increases software modules that implement communication the degree of labor required to produce a tidal datum. As with speciﬁc platform hardware and/or speciﬁc a result, CBI-DNR has developed Web-based software that communications media. As new platform hardware automatically computes datums from water-level data stored conﬁgurations or communications channels are added in the CBI-DNR database. to the observation network, it is easy to develop the corresponding acquisition component and integrate it LITTORAL BOUNDARY DEFINITION into the existing acquisition subsystem. Tidal datums are used to determine littoral boundaries between submerged and privately owned lands. Bench-mark 2. The “data archival/decoding” subsystem is leveling is performed annually at each TCOON station to responsible for maintaining an archive of the ensure station stability and to relate water-level information source data and converting the raw data ﬁles into to reference points on land. CBI-DNR publishes bench-mark a standardized interchange format for storage in elevation sheets on its Web site that indicate the elevation of the MySQL database. The clerk and its decoder bench marks above tidal datum planes; surveyors then use programs also perform quality-control data checks these elevations for precisely locating littoral boundaries. to prevent erroneous data from entering the online . database system. NAVIGATION AND MARINE SAFETY 3. Any further corrections or adjustments to the data TCOON data has great value to navigation interests. are recorded in MySQL database as separate Information provided by TCOON is augmented with current “correction” records and automatically applied to meter data from other systems to provide near-real-time reports of conditions in heavily trafficked shipping channels in data. 4. The “data extraction” subsystem also provides an interface to allow users to query the observation database. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM TEXAS COASTAL OCEAN OBSERVATION NETWORK several Texas ports. One such system is the Corpus Christi Real-Time Navigation System sponsored by the Port of Corpus Christi. CBI-DNR has installed acoustic doppler current profiler instruments at key locations along the Corpus Christi Ship Channel; near-real-time data from these instruments and TCOON platforms allow ship pilots to better navigate large vessels in and out of Corpus Christi Bay. Pilots simply call a local telephone number to receive a digitized voice summary of the latest current, water-level, and meteorological conditions for the stations in Corpus Christi Bay. The NOS-sponsored Houston/Galveston Physical Oceanographic Real-Time System (PORTS) makes similar use of TCOON stations to assist pilots in Galveston Bay, and the Freeport FlowInfo system monitors currents and water levels for Port Freeport. CHANNEL DREDGING AND MAINTENANCE The United States Army Corps of Engineers Galveston District uses TCOON data to plan and execute its maintenance of Federally authorized channels and waterways along the Texas coast, including ship channels and the Gulf Intracoastal Waterway. Navigation channel maintenance and operation activities require knowledge of water level, tidal datums, and other environmental parameters before, during, and after dredging. station in CBI-DNR’s observation networks. In 1993, WindInfo received over 60,000 calls from windsurfers, sailors, OIL-SPILL RESPONSE fishermen, and other recreational enthusiasts desiring near- A significant application of TCOON data involves real-time information along the coast. developing circulation and oil-spill trajectory models. Each night, the latest water level measurements are FUTURE automatically downloaded from the TCOON Web site, A collaboration of Texas A&M University researchers are and used to generate a new set of model calculations that investigating neural-network-based models to make short- predict currents for the following three days. These current term predictions of water level and currents along the Texas predictions are input into a trajectory model that predicts Gulf coast and to make real-time predictions of storm surge where oil will move if a spill occurs. Oil-spill emergency of tropical storms. The new models will use the real-time response teams are deployed based on these models to and historical observations from TCOON coupled with wind deploy to minimize a spill’s impact. forecasts from the National Weather Service to predict water elevations and currents in a 1 to 30-hour time horizon, HURRICANE AND STORM PREPARATION necessary for navigation, oil spill response, and marine An initial and ongoing application of CBI-DNR’s tide operations. Preliminary results indicate that for Texas coastal stations has been to provide timely water-level data to waters a neural-network-based model can significantly assist the local Corpus Christi National Weather Service outperform forecasts of water levels based on traditional Office, and thus the entire community, with hurricane or harmonic analysis methods. storm preparedness regarding inundation of low-lying The Department of Computing and Mathematical Sciences at areas along the coast, road closures, and evacuations. A&M-CC is developing a Scientific Visualization Laboratory The local National Weather Service Office seamlessly which will provide facilities for interactive visualization integrates near-real-time observations into its weather and investigation of the multidimensional multivariate data forecasting systems to better predict the effects of gathered by the TCOON system. an incoming storm. Because the A&M-CC campus is evacuated if a hurricane threatens the area, CBI-DNR TCOON plans to expand its data management system to can move its data-collection system to local emergency include environmental observation networks from other operations centers to continue collection and distribution of states and organizations. Preliminary efforts to integrate TCOON data during the storm event. data from the Texas Automated Buoy System and the University of Southern Florida’s Coastal Ocean Monitoring RECREATION & BENEFIT TO THE GENERAL PUBLIC and Prediction System have been successful. A centralized A particularly successful application of TCOON data has data management system that can accommodate multiple been CBI-DNR’s WindInfo system. WindInfo is a telephone observation networks will reduce the need to redevelop voice-response system (361-992-WIND) that provides systems such as TCOON and allow better communication the general public with wind and water conditions for any among the producers and consumers of environmental data. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM UNIVERSITY OF MAYAGUEZ, PUERTO RICO TSUNAMI WARNING SYSTEM CUSTOMER: University of Puerto Rico, Mayaguez PROJECT: In 2005, the University received a grant from FEMA to develop an island-wide tsunami warning network. The network was to be based on NOAA-NOS compliant tide gages. NOAA-NOS was to supply 6 tide stations, and the University was to purchase 6 more. In addition, the University was to purchase a GOES Satellite ground station so that data could be received directly. As of August, 2007, the system is nearing completion. Sutron has installed the ground station at Mayaguez, and ﬁve of the six University stations have been installed. NOAA has completed the installation of their stations. Puerto Rico now has the highest density (in terms of tide monitors per mile of shore line) in the world. Sutron’s part of the Tsunami Warning System included: • Supply and installation of the GOES ground station at Mayaguez • Site investigations for all six University tide stations • Supply and installation assistance for the six University tide stations • Supply all of the GOES decoding and database software for the GOES ground station The tide stations supplied and installed by Sutron are fully NOAA-NOS compliant, with redundant electronics and primary and backup water level sensors. All of the stations also include a full complement of weather instruments (wind speed and direction, air temperature, barometric pressure). Sutron has now begun to work with other localities in Puerto Rico to add local Tsunami detection and warning. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM UNIVERSITY OF HAWAII SEA LEVEL MONITORING PROGRAM SINCE 2004 THE UNIVERSITY OF HAWAII’S STANDARD TRANSMITTER FOR ITS SEA LEVEL MONITORING PROGRAM HAS BEEN SUTRON’S SATLINK2 TRANSMITTER/LOGGER. SUMMARY The University of Hawaii operates a large pro- gram to monitor sea level changes around the Paciﬁc rim. The program extends as far west as Kenya in East Africa. Sea level stations are located in extremely remote areas, and are often visited only once every two years. The University of Hawaii Sea Level Center col- ects, processes, and distributes tide gauge data from around the world in support of CLIVAR, GLOSS, GCOS, GODAE and other climate research activities. The measurements are used for the evaluation of numerical models, joint analyses with satellite altimeter datasets, the calibration of altimeter data, the produc- tion of oceanograhic products and research Kenya: Lamu Tide Gauge on interannual to decadal climate ﬂuctuations. Also, in support of satellite altimeter calibra- The Lamu gauge is a ﬂoat type installed on tion and validation and for absolute sea level a stilling well. It was installed in 1996 by the rise monitoring, the UHSLC and the Paciﬁc GPS University of Hawaii Sea Level Centre (UHSLC). Facility maintain continuous GPS systems at 7 The station is equipped with modern data tide gauge stations. loggers, measuring sea level every minute and storing on diskette at 15 minutes interval. In U of H used a competitor’s data logger until addition, the 2004. At that time, Sturon introduced them to Lamu tide gauge our Satlink2 GOES Transmitter/Logger. The is equipped with Satlink2 met most of their needs, but did not a satellite data format the data transmissions in the way need- transfer device ed and also did not perform the same type of to enable real data averaging they had been using. time access to data. In August Sutron assigned a Senior R&D Engineer to the 2006, the Lamu program, and over the course of three months tide gauge sta- developed new ﬁrmware for the Satlink to tion also under- meet U of H requirements. Satlink is now the went a major standard transmitter for the sea level monitor- overhaul of ing program. equipment. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM KENYA TURN-KEY TSUNAMI EARLY WARNING SYSTEM April 2007 Project to measure water levels at 3 points along Kenya’s coast for early warning of tsunamis & data collection crucial to monitor & predict meteorological & climatic events OWNER: Kenya Meteorological Department PROJECT: Kenya Tide Station System EQUIPMENT: 3 RTUs, 1 Central Base Station DATES: 2006-2007 with on-going support CONTACT: Dr. Joseph Mukabana Director, Kenya Meteorological Department VALUE: $100,000 SENSORS: Air Temperature, Relative Humidity, Barometric Pressure, Wind Speed, Wind Direction, water level, water quality TELEMETRY: Satellite transmitter. GSM modems to transfer data to Central Station The Kenya Met Department awarded to Sutron a contract to design, build, and install a real-time network of three Automatic Tidal & Weather Monitoring Stations located on existing piers to ensure sustainable use and protection of their coastal waters. Moreover, the establishment of an early warning system using the tide stations will decrease the impact of tsunamis and other related maritime disasters (e.g. tropical cyclone, oil spills, marine accidents, store surges and strong ocean waves, etc) Modern technologies in ocean monitoring and new developments in ocean climate modeling require that the data be accurate and the system be durableto maximize the System’s ability for early detection of tsunamis and weather and climate modelling activities, co-ordinated through the Kenya Meteorological Department of the Western Indian Ocean Region. The ocean observation platforms consist of instruments used for observation of sea level changes and for measurement of meteorological and oceanographic parameters like sea surface temperature, currents, surface wind, upper ocean temperature, salinity and velocity. The automatic tidal and weather monitoring stations have the primary telemetry, backup telemetry (PSTN), and a following: Data processing center with software and PC for instant, 24-7 access to tsunami warning and water level data. Meet International as well as NOAA/NOS standards for primary tide gages. A full compliment of weather instruments to extend the capability of the stations to support other emergencies Communicate through METEOSAT Second Generation such as storm surge detection and monitoring. (MSG) satellite with data reception at GTS center located in Kenya All civil works (excluding shelters). Include all necessary software for recovering and Installation transmitting data from METEOSAT via the GTS center Training and displaying the tide level. Software and PC to manually download and decode Components to interface with GTS. satellite data via the Internet. NOS-certified tide stations with Meteosat satellite After sales support using the local in-county agent. 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM KENYA TURN-KEY TSUNAMI EARLY WARNING SYSTEM April 2007 Main Station Tower Aquatrak Water Level Sensor Water Quality Sensor XConnect Dataview by Stations 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM NOAA/NOS REFERENCES Sutron is proud of our record as the supplier of NOAA tide gages. The program is ongoing, and NOAA has awarded Sturon three Small Business Innovative Research (SBIR) contracts to enhance the tide program. The SBIRs cover an improved dual-oriﬁce bubbler gage, and advanced hardware to take advantage of the little known or used DCPI two-way feature of the GOES Satellites. The latter will allow NOAA to send conﬁguration commands to GOES DCPs for the ﬁrst time. The following individuals may be contacted concerning Sutron’s activities with NOAA/NOS: Mr. Tom Mero NOAA Headquarters Silver Spring, MD Tom.email@example.com (301) 713-2897 X145 Mr. Warren Krug NOS Field Operations Chesapeake, VA Warren.firstname.lastname@example.org 757-436-0200 757-647-4624 cell Mr. Mark Bushnell NOS Field Operations Chesapeake, VA Mark.Bushnell@noaa.gov 757-436-0200 Mr. Phil Libraro NOS Field Operations Chesapeake, VA email@example.com 757-635-4550 cell Sutron also works closely with the Texas A&M tides program (TCOONS). TCOONS is an of- ﬁcially accepted part of the NOAA NWLON network. The following individual may be contacted: Mr. James Rizzo University of Texas A&M, Corpus Christi, TX firstname.lastname@example.org (361) 825-5758 (361) 549-5120 cell 21300 RIDGETOP CIRCLE STERLING, VA 20166 WWW.SUTRON.COM (703)406-2800 (703)406-2801 FAX SALES@SUTRON.COM
"NOS-APPROVED TIDE STATIONS"