00090v3.nc http://xml.opendap.org/ns/DAP/3.2# http://xml.opendap.org/dap/dap3.2.xsd http://xml.opendap.org/transforms/ddxToRdfTriples.xsl 3.2 /SADCP/Oleander/00090v3.nc NC_GLOBAL Container WOCE_Version String 3.0 CONVENTIONS String COARDS/WOCE DATA_TYPE String TRACK DATA_SUB_TYPE String SADCP INST_TYPE String SADCP DATA_ORIGIN String UNIVERSITY OF RHODE ISLAND EXPOCODE String none WOCE_ID String none CRUISE_NAME String OLE92.FALL DAC_ID String 00090 FILE_SOURCE String 00090.sub file_date String 12 Apr 2002 TIME_INTERVAL_BETWEEN_DATA String hour TIME_AVERAGING_SCHEME String mean centered on hour DEPTH_INTERVAL_BETWEEN_DATA String 10 meters DEPTH_AVERAGING_SCHEME String mean centered on given depth SHIP_POSITION String average over hour doc_000 String The following time, space, and depth ranges for this cruise doc_001 String are based on the complete high-resolution data set and does doc_002 String not agree exactly with the ranges of this averaged subset. doc_003 String #DATA_DATES: 1992/10/30 22:16:00 --- to --- 1993/01/28 20:18:00 doc_004 String #LON_RANGE: 74.08 W --- to --- 64.57 W doc_005 String #LAT_RANGE: 32.20 N --- to --- 40.66 N doc_006 String #DEPTH_RANGE: 13 --- to --- 408 m doc_007 String #SAC_CRUISE_ID: 00090 doc_008 String #PLATFORM_NAME: M.V. Oleander (commercial container vessel) doc_009 String #PRINCIPAL_INVESTIGATOR_NAME: T.Rossby, E.Gottlieb, G.Schwartze doc_010 String #PI_INSTITUTION: University of Rhode Island doc_011 String #PI_COUNTRY: USA doc_012 String #PROJECT: The Oleander Project doc_013 String #CRUISE_NAME: ole92.fall doc_014 String #PORTS: Port Elizabeth, New Jersey --- to --- Hamilton, Bermuda doc_015 String #GEOGRAPHIC_REGION: Northwest Atlantic Ocean doc_016 String #PROCESSED_BY: Erik Gottlieb doc_017 String #NAVIGATION: gps doc_018 String #QUALITY_NAV: good doc_019 String #GENERAL_INFORMATION: doc_020 String CRUISE NOTES doc_021 String CHIEF SCIENTIST ON SHIP : none doc_022 String SIGNIFICANT DATA GAPS :*92/11/13-92/11/19 software failure doc_023 String *92/12/22-92/12/25 Christmas holiday doc_024 String *92/12/29-93/ 1/ 7 deck unit shut off doc_025 String *93/ 1/11-93/ 1/14 cable plug stressed doc_026 String * indicates total data loss doc_027 String SPECIAL SHIP TRACK PATTERNS : weekly ship schedule is as follows: doc_028 String Friday - leave Elizabeth (outbound) doc_029 String Sunday - arrive Hamilton doc_030 String Tuesday - leave Hamilton (inbound) doc_031 String Thursday - arrive Elizabeth doc_032 String COMMENTS : The only significant deviations from doc_033 String the weekly schedule are due to bad doc_034 String weather and port conflicts, and typically doc_035 String are no more than 24 hours. doc_036 String ADCP INSTRUMENTATION doc_037 String MANUFACTURER : RD Instruments (RDI) doc_038 String HARDWARE MODEL : RD-VM150 doc_039 String SERIAL NUMBERS : ADCP = 536 / XDUC = 449 doc_040 String FIRMWARE VERSION : 17.10 doc_041 String <the following 5 fields are specific to a given hardware model> doc_042 String TRANSMIT FREQUENCY : 153 kHz doc_043 String TRANSDUCER CONFIGURATION : JANUS CONCAVE doc_044 String ACOUSTIC BEAM WIDTH : doc_045 String TRANSDUCER BEAM ANGLE : 30 deg. doc_046 String COMMENTS : doc_047 String doc_048 String ADCP INSTALLATION doc_049 String METHOD/DESCRIPTION OF THE doc_050 String ATTACHMENT TO THE HULL : A seachest (well) is flush-welded doc_051 String to the vessel's hull, so that the doc_052 String seachest bottom is flush with the doc_053 String hull's outer surface (the vessel bottom doc_054 String is perfectly flat and smooth with no doc_055 String protuberances). The transducer is doc_056 String mounted on a top-hat which is bolted doc_057 String on top of the seachest, such that the doc_058 String transducer bottom is slightly above doc_059 String the level of the seachest bottom. doc_060 String For transducer removal, a water-tight doc_061 String cover plate is bolted over the seachest doc_062 String opening. doc_063 String LOCATION/DEPTH ON HULL : The seachest is located several meters doc_064 String foreward and starboard of the vessel's doc_065 String center point. Vessel draught is load- doc_066 String dependent, and averages about 4.9 m doc_067 String Hamilton-bound (outbound) and 4.4 m doc_068 String Elizabeth-bound (inbound). doc_069 String Within the database, transducer depth is doc_070 String set to a mean nominal depth of 4 m for doc_071 String all legs. doc_072 String REPEATABLE ATTACHMENT : YES doc_073 String DATE OF MOST RECENT ATTACH. : 94/4/29 doc_074 String ACOUSTIC WINDOW : NO doc_075 String COMMENTS : vessel length 117.5 m doc_076 String breadth 19.8 m doc_077 String weight 4950 tonnes doc_078 String speed 16 knots doc_079 String doc_080 String ADCP INSTRUMENT CONFIGURATION doc_081 String <these are normally documented automatically and are part of Codas database> doc_082 String ELZ NAR NBN (NYB) NBS SLS NWA BER doc_083 String DEPTH RANGE UPPER (m) : 9.5 9.5 9.5 (14) 11 20 20 9.5 doc_084 String DEPTH RANGE LOWER (m) :15.5 15.5 47.5 (158) 107 404 404 15.5 doc_085 String BIN LENGTH (m) : 1 1 1 (4) 2 8 8 1 doc_086 String NUMBER OF BINS : 8 8 40 (38) 50 50 50 8 doc_087 String TRANSMIT PULSE LENGTH (m) : 1 1 2 (4) 4 16 16 1 doc_088 String BOTTOM TRACKING : no no yes (yes) yes no no no doc_089 String BLANKING INTERVAL : ... 4 m ... doc_090 String ENSEMBLE AVERAGING INTERVAL : ... 300 s ... doc_091 String SOUND SPEED CALCULATION : ... FUNCTION OF TEMP AT TRANSDUCER ... doc_092 String DIRECT COMMANDS : FH00001 E0005020099 CF25 doc_093 String COMMENTS : A user exit program automatically resets doc_094 String the instrument configuration based upon doc_095 String geographic location. The locations are doc_096 String Port Elizabeth (ELZ), Verrazano Narrows doc_097 String (NAR), New York Bight (NYB), Slope Sea doc_098 String (SLS), Northwest Atlantic (NWA), and doc_099 String Bermuda (BER). NYB and SLS are separated doc_100 String by the shelf break, and SLS and NWA are doc_101 String separated by the mean location of the Gulf doc_102 String Stream. After 93/10/22 the NYB region doc_103 String is split into north and south regions doc_104 String (NBN and NBS). Prior to spring 1993 doc_105 String pulse length, bin length, and number of doc_106 String bins were varied to find the optimal doc_107 String value listed above. During 93/6/25- doc_108 String 93/8/12 a small region named test near doc_109 String the center of the NWA region and doc_110 String having an ensemble interval of several doc_111 String seconds was used to observe the effects doc_112 String of waves on data quality. doc_113 String doc_114 String ADCP DATA ACQUISITION SYSTEM doc_115 String SOFTWARE DEVELOPERS : RDI, Chris Humphries, Charlie Flagg, doc_116 String and Joe Lewkowicz doc_117 String SOFTWARE VERSIONS : DAS 2.48 doc_118 String DATA LOGGER, MAKE/MODEL : Oak Microsystems (12 MHz 386sx) doc_119 String ADCP/LOGGER COMMUNICATION : serial doc_120 String USER BUFFER VERSION : ASCII doc_121 String CLOCK : PC clock doc_122 String COMMENTS : doc_123 String doc_124 String SHIP HEADING doc_125 String INSTRUMENT MAKE/MODEL : Anschutz doc_126 String SYNCHRO OR STEPPER : synchro before 93/6/17, stepper after doc_127 String SYNCHRO RATIO : 360:1 doc_128 String COMPENSATION APPLIED : NO doc_129 String GPS ATTITUDE SYSTEM : Ashtech 3DF installed 94/9/24 doc_130 String LOCATION OF ANTENNAS : Array located on port forward corner doc_131 String of flying bridge, in an L shape doc_132 String with about 3.5 m baseline distance doc_133 String between antennas. doc_134 String RIGID ATTACHMENT : YES - stainless steel rods clamped doc_135 String to brackets welded to rail.\\011 doc_136 String LOGGING RATE : 1 per sec doc_137 String COMMENTS : Prior to 93/4/15 the gyrocompass doc_138 String exhibited resets , where it would doc_139 String unexpectedly slew to 0 but then doc_140 String continue to track vessel heading. doc_141 String Since the vessel steams a very nearly doc_142 String constant heading, the resets were doc_143 String corrected for by taking the difference doc_144 String in headings before and after doc_145 String the reset and applying that difference doc_146 String as a heading misalignment angle. doc_147 String During 92/10/30-93/2/27 calibration doc_148 String values for heading misalignment and doc_149 String scale factor were obtained directly doc_150 String from bottom tracking each trip. doc_151 String Between 93/2/27-93/4/15 data are of doc_152 String very poor quality due to bad weather doc_153 String (see QUALITY ASSESSMENT ) and doc_154 String have not been calibrated. The doc_155 String reset problem was solved by using a doc_156 String separate repeater and computer to doc_157 String bypass the DAS-aquired gyrocompass doc_158 String heading. For calibration method doc_159 String after 93/4/15, see CALIBRATION . doc_160 String doc_161 String ANCILLARY MEASUREMENTS doc_162 String SURFACE TEMP AND SALINITY : thermistor at transducer; no salinity doc_163 String PITCH/ROLL MEASUREMENTS : none doc_164 String HYDRO CAST MEASUREMENTS : none doc_165 String BIOMASS DETERMINATION : YES - Using AGCAVE.COM doc_166 String DATE OF LAST CALIBRATION : doc_167 String CALIBRATION COEFFICIENTS : doc_168 String BEAM-AVERAGED AGC AVAILABLE?: YES doc_169 String CALIBRATION NET TOWS? : YES - Plankton recorder towed one doc_170 String trip per month doc_171 String COMMENTS : doc_172 String doc_173 String NAVIGATION doc_174 String TRANSIT : NO doc_175 String GPS : YES doc_176 String MAKE/MODEL : Magnavox MX4200 doc_177 String SELECTIVE AVAILABILITY : YES doc_178 String P-CODE : NO doc_179 String DIFFERENTIAL : NO doc_180 String SAMPLE INTERVAL : 1 per sec doc_181 String LOCATION OF ANTENNA doc_182 String RELATIVE TO TRANSDUCER : antenna on flying bridge, roughly doc_183 String 80 m aft, 8 m to port doc_184 String TIME OBTAINED RELATIVE TO doc_185 String START/END OF ENSEMBLE : end doc_186 String AVERAGING/EDITING APPLIED : doc_187 String LOGGED WITH ADCP DATA : YES - user exit program doc_188 String LOGGED INDEPENDENTLY : NO doc_189 String COMMENTS : doc_190 String OTHER : doc_191 String doc_192 String ADCP DATA PROCESSING/EDITING doc_193 String PERSONNEL IN CHARGE : E. Gottlieb doc_194 String SOUND SPEED CORRECTIONS : applied using transducer temperature doc_195 String DATE OF PROCESSING : 1993-95 doc_196 String NOTABLE SCATTERING LAYERS : almost every trip a vertically migrating doc_197 String scattering layer is observed just off doc_198 String the shelf break doc_199 String COMMENTS : doc_200 String doc_201 String CALIBRATION doc_202 String GYROCOMPASS CORRECTION : YES - from bottom tracking doc_203 String WATER TRACK METHOD : NO - ship never stops during trip doc_204 String BOTTOM TRACK METHOD : YES doc_205 String AMOUNT OF TIME AVAILABLE : about 6 hours/trip (=about 12.5%) doc_206 String TOTAL No. CALIBRATION PTS: one/trip (after reducing residuals) doc_207 String TIME VARIANT : doc_208 String VELOCITY DEPENDENT : MAYBE - has not yet been observed doc_209 String HEADING DEPENDENT : YES - depending on outbound (heading doc_210 String about 135 deg. T) or inbound (about 315) doc_211 String OUTBOUND INBOUND doc_212 String NUMBER OF TRIPS : 21 19 doc_213 String AMPLITUDE MIN : 1.001 1.001 doc_214 String AMPLITUDE MEAN : 1.014 1.044 doc_215 String AMPLITUDE MAX : 1.047 1.230 doc_216 String AMPLITUDE STD : 0.012 0.055 doc_217 String PHASE MIN : -1.61 0.21 doc_218 String PHASE MEAN : -1.36 0.56 doc_219 String PHASE MAX : -0.74 1.05 doc_220 String PHASE STD : 0.21 0.19 doc_221 String FINAL SELECTION AMPLITUDE : 1.0 1.0 doc_222 String FINAL SELECTION PHASE : -1.4 0.6 doc_223 String AGREEMENT WITH PREVIOUS doc_224 String CRUISES : see statistics above doc_225 String COMMENTS : Bottom tracking is done for about doc_226 String six hours each trip (while traversing doc_227 String the shelf), and after reducing residuals doc_228 String a single value of amplitude and phase doc_229 String is obtained for each trip. Statistics doc_230 String are done for all available trips (see doc_231 String above) and the final selection values doc_232 String (assumed constant over the entire trip) doc_233 String have been used to correct all trips. doc_234 String For calibration method prior to doc_235 String 93/4/16 see SHIP HEADING . doc_236 String doc_237 String NAVIGATION CALCULATION doc_238 String NAVIGATION USED : gps doc_239 String REFERENCE LAYER DEPTH RANGE : bins 5 - 15 doc_240 String FILTERING METHOD FOR doc_241 String SMOOTHING REFERENCE LAYER doc_242 String VELOCITY (FORM/WIDTH) : Blackman window, half-width = 0.5 hour doc_243 String FINALIZED SHIP VEL/POSITIONS doc_244 String STORED IN DATABASE : YES doc_245 String COMMENTS : doc_246 String doc_247 String QUALITY ASSESSMENT doc_248 String ON-STATION VS. UNDERWAY : All data underway, no stations. Quality doc_249 String ranges from excellent to poor depending doc_250 String on load and sea state. doc_251 String VECTOR, CONTOUR, STICK PLOTS: excellent to poor doc_252 String COMMENTS : Data quality is dependent upon load doc_253 String and sea state, most likely due to doc_254 String signal attenuation by a bubble layer doc_255 String under the hull (the hull bottom is doc_256 String perfectly flat). For a quiet seas doc_257 String outbound trips are of excellent quality doc_258 String and inbound are fair; for very heavy doc_259 String seas most data are poor. For moderate doc_260 String seas overall quality ranges from good doc_261 String to marginal. doc_262 String doc_263 String REFERENCES (DATA REPORTS,ETC) : doc_264 String doc_265 String Gottlieb, Rossby, Schwartze, Cornillon, and Flagg (1994). The Oleander doc_266 String Project First-Year Results: Gulf Stream ADCP Measurements from doc_267 String October 1992 to October 1993. Proceedings from the Atlantic doc_268 String Climate Change Program meeting, May 1994, Princeton, NJ. ed. doc_269 String Anne-Marie Wilburn. doc_270 String doc_271 String Gottlieb, Rossby, Schwartze, and Flagg (1995). The Oleander Project: doc_272 String Measuring the Gulf Stream using and ADCP mounted on a Volunteer doc_273 String Observing Ship. Proceedings from the Atlantic Climate Change doc_274 String Program meeting, May 1995, Miami, Florida. ed. Anne-Marie Wilburn. doc_275 String doc_276 String (both available upon request from Anne-Marie Wilburn, AOML/NOAA, doc_277 String 4301 Rickenbacker Cswy, Miami, FL 33149 -or- wilburn@aoml.erl.gov) doc_278 String DODS_EXTRA Container Unlimited_Dimension String time decday decday decday.decday decday long_name String Decimal Day units String days relative to 1992-1-1 0:0:0 data_min Float64 303.9544200000000 data_max Float64 393.8301600000000 time 2158 woce_date woce_date woce_date.woce_date woce_date long_name String WOCE date units String yyyymmdd UTC data_min Int32 19921030 data_max Int32 19930128 time 2158 woce_time woce_time woce_time.woce_time woce_time long_name String WOCE time of day units String hhmmss.dd UTC data_min Float64 0.000000000000000 data_max Float64 235959.1200000000 time 2158 longitude longitude longitude.longitude longitude long_name String longitude units String degrees_E data_min Float64 -74.06560000000000 data_max Float64 -64.57150000000000 valid_min Float64 -180.0000000000000 valid_max Float64 180.0000000000000 instrument String nominally GPS _FillValue Float32 99999.0000 C_format String %9.4f F_format String f9.4 time 2158 latitude latitude latitude.latitude latitude long_name String latitude units String degrees_N data_min Float64 32.21560000000000 data_max Float64 40.64730000000000 valid_min Float64 -90.00000000000000 valid_max Float64 90.00000000000000 instrument String nominally GPS _FillValue Float32 99999.0000 C_format String %8.4f F_format String f8.4 time 2158 trans_temp trans_temp trans_temp.trans_temp trans_temp long_name String ADCP transducer temperature units String degrees C data_min Float64 3.600000000000000 data_max Float64 26.30000000000000 _FillValue Float32 99999.0000 instrument String nominally thermistor valid_min Float64 0.000000000000000 valid_max Float64 40.00000000000000 C_format String %4.1f F_format String f4.1 time 2158 sd_trans_temp sd_trans_temp sd_trans_temp.sd_trans_temp sd_trans_temp long_name String transducer temperature (standard deviation) units String degrees C data_min Float64 0.000000000000000 data_max Float64 2.830000000000000 _FillValue Float32 99999.0000 instrument String nominally thermistor valid_min Float64 0.000000000000000 valid_max Float64 40.00000000000000 C_format String %5.2f F_format String f5.2 time 2158 ship_u ship_u ship_u.ship_u ship_u long_name String eastward ship speed (hourly mean) units String meters per second data_min Float64 -7.200000000000000 data_max Float64 7.000000000000000 _FillValue Float32 99999.0000 instrument String optimized position based on ADCP and GPS valid_min Float64 -15.00000000000000 valid_max Float64 15.00000000000000 C_format String %5.1f F_format String f5.1 time 2158 sd_ship_u sd_ship_u sd_ship_u.sd_ship_u sd_ship_u long_name String eastward ship speed (standard deviation) units String meters per second data_min Float64 0.000000000000000 data_max Float64 2.660000000000000 _FillValue Float32 99999.0000 instrument String optimized position based on ADCP and GPS valid_min Float64 0.000000000000000 valid_max Float64 15.00000000000000 C_format String %5.2f F_format String f5.2 time 2158 ship_v ship_v ship_v.ship_v ship_v long_name String northward ship speed (hourly mean) units String meters per second data_min Float64 -7.700000000000000 data_max Float64 7.500000000000000 _FillValue Float32 99999.0000 instrument String optimized position based on ADCP and GPS valid_min Float64 -15.00000000000000 valid_max Float64 15.00000000000000 C_format String %5.1f F_format String f5.1 time 2158 sd_ship_v sd_ship_v sd_ship_v.sd_ship_v sd_ship_v long_name String northward ship speed (standard deviation) units String meters per second data_min Float64 0.000000000000000 data_max Float64 0.000000000000000 _FillValue Float32 99999.0000 instrument String optimized position based on ADCP and GPS valid_min Float64 0.000000000000000 valid_max Float64 15.00000000000000 C_format String %5.2f F_format String f5.2 time 2158 u u u.u u long_name String eastward absolute current velocity (hourly mean) units String meters per second data_min Float64 -1.589000000000000 data_max Float64 4.099000000000000 _FillValue Float32 99999.0000 instrument String ADCP/GPS valid_min Float64 -9.900000000000000 valid_max Float64 9.900000000000000 C_format String %6.3f F_format String f6.3 time 2158 depth 9 v v v.v v long_name String northward absolute current velocity (hourly mean) units String meters per second data_min Float64 -4.030000000000000 data_max Float64 1.926000000000000 _FillValue Float32 99999.0000 instrument String ADCP/GPS valid_min Float64 -9.900000000000000 valid_max Float64 9.900000000000000 C_format String %6.3f F_format String f6.3 time 2158 depth 9