| WOCE_Version: | 3.0 |
| CONVENTIONS: | COARDS/WOCE |
| DATA_TYPE: | TRACK |
| DATA_SUB_TYPE: | SADCP |
| INST_TYPE: | SADCP |
| DATA_ORIGIN: | UNIVERSITY OF RHODE ISLAND |
| EXPOCODE: | none |
| WOCE_ID: | none |
| CRUISE_NAME: | OLE93.SUMR |
| DAC_ID: | 00093 |
| FILE_SOURCE: | 00093.sub |
| file_date: | 12 Apr 2002 |
| TIME_INTERVAL_BETWEEN_DATA: | hour |
| TIME_AVERAGING_SCHEME: | mean centered on hour |
| DEPTH_INTERVAL_BETWEEN_DATA: | 10 meters |
| DEPTH_AVERAGING_SCHEME: | mean centered on given depth |
| SHIP_POSITION: | average over hour |
| doc_000: | The following time, space, and depth ranges for this cruise |
| doc_001: | are based on the complete high-resolution data set and does |
| doc_002: | not agree exactly with the ranges of this averaged subset. |
| doc_003: | #DATA_DATES: 1993/06/18 21:08:00 --- to --- 1993/08/05 13:24:00 |
| doc_004: | #LON_RANGE: 73.92 W --- to --- 64.60 W |
| doc_005: | #LAT_RANGE: 32.38 N --- to --- 40.49 N |
| doc_006: | #DEPTH_RANGE: 9 --- to --- 416 m |
| doc_007: | #SAC_CRUISE_ID: 00093 |
| doc_008: | #PLATFORM_NAME: M.V. Oleander (commercial container vessel) |
| doc_009: | #PRINCIPAL_INVESTIGATOR_NAME: T.Rossby, E.Gottlieb, G.Schwartze |
| doc_010: | #PI_INSTITUTION: University of Rhode Island |
| doc_011: | #PI_COUNTRY: USA |
| doc_012: | #PROJECT: The Oleander Project |
| doc_013: | #CRUISE_NAME: ole93.sumr |
| doc_014: | #PORTS: Port Elizabeth, New Jersey --- to --- Hamilton, Bermuda |
| doc_015: | #GEOGRAPHIC_REGION: Northwest Atlantic Ocean |
| doc_016: | #PROCESSED_BY: Erik Gottlieb |
| doc_017: | #NAVIGATION: gps |
| doc_018: | #QUALITY_NAV: good |
| doc_019: | #GENERAL_INFORMATION: |
| doc_020: | CRUISE NOTES |
| doc_021: | CHIEF SCIENTIST ON SHIP : none |
| doc_022: | SIGNIFICANT DATA GAPS : 93/ 6/25-93/ 7/ 1 lost gyrocompass |
| doc_023: | * indicates total data loss |
| doc_024: | SPECIAL SHIP TRACK PATTERNS : weekly ship schedule is as follows: |
| doc_025: | Friday - leave Elizabeth (outbound) |
| doc_026: | Sunday - arrive Hamilton |
| doc_027: | Tuesday - leave Hamilton (inbound) |
| doc_028: | Thursday - arrive Elizabeth |
| doc_029: | COMMENTS : The only significant deviations from |
| doc_030: | the weekly schedule are due to bad |
| doc_031: | weather and port conflicts, and typically |
| doc_032: | are no more than 24 hours. |
| doc_033: | |
| doc_034: | ADCP INSTRUMENTATION |
| doc_035: | MANUFACTURER : RD Instruments (RDI) |
| doc_036: | HARDWARE MODEL : RD-VM150 |
| doc_037: | SERIAL NUMBERS : ADCP = 536 / XDUC = 449 |
| doc_038: | FIRMWARE VERSION : 17.10 |
| doc_039: | |
| doc_040: | TRANSMIT FREQUENCY : 153 kHz |
| doc_041: | TRANSDUCER CONFIGURATION : JANUS CONCAVE |
| doc_042: | ACOUSTIC BEAM WIDTH : |
| doc_043: | TRANSDUCER BEAM ANGLE : 30 deg. |
| doc_044: | COMMENTS : |
| doc_045: | |
| doc_046: | ADCP INSTALLATION |
| doc_047: | METHOD/DESCRIPTION OF THE |
| doc_048: | ATTACHMENT TO THE HULL : A seachest (well) is flush-welded |
| doc_049: | to the vessel's hull, so that the |
| doc_050: | seachest bottom is flush with the |
| doc_051: | hull's outer surface (the vessel bottom |
| doc_052: | is perfectly flat and smooth with no |
| doc_053: | protuberances). The transducer is |
| doc_054: | mounted on a top-hat which is bolted |
| doc_055: | on top of the seachest, such that the |
| doc_056: | transducer bottom is slightly above |
| doc_057: | the level of the seachest bottom. |
| doc_058: | For transducer removal, a water-tight |
| doc_059: | cover plate is bolted over the seachest |
| doc_060: | opening. |
| doc_061: | LOCATION/DEPTH ON HULL : The seachest is located several meters |
| doc_062: | foreward and starboard of the vessel's |
| doc_063: | center point. Vessel draught is load- |
| doc_064: | dependent, and averages about 4.9 m |
| doc_065: | Hamilton-bound (outbound) and 4.4 m |
| doc_066: | Elizabeth-bound (inbound). |
| doc_067: | Within the database, transducer depth is |
| doc_068: | set to a mean nominal depth of 4 m for |
| doc_069: | all legs. |
| doc_070: | REPEATABLE ATTACHMENT : YES |
| doc_071: | DATE OF MOST RECENT ATTACH. : 94/4/29 |
| doc_072: | ACOUSTIC WINDOW : NO |
| doc_073: | COMMENTS : vessel length 117.5 m |
| doc_074: | breadth 19.8 m |
| doc_075: | weight 4950 tonnes |
| doc_076: | speed 16 knots |
| doc_077: | |
| doc_078: | ADCP INSTRUMENT CONFIGURATION |
| doc_079: | |
| doc_080: | ELZ NAR NBN (NYB) NBS SLS NWA BER |
| doc_081: | DEPTH RANGE UPPER (m) : 9.5 9.5 9.5 (14) 11 20 20 9.5 |
| doc_082: | DEPTH RANGE LOWER (m) :15.5 15.5 47.5 (158) 107 404 404 15.5 |
| doc_083: | BIN LENGTH (m) : 1 1 1 (4) 2 8 8 1 |
| doc_084: | NUMBER OF BINS : 8 8 40 (38) 50 50 50 8 |
| doc_085: | TRANSMIT PULSE LENGTH (m) : 1 1 2 (4) 4 16 16 1 |
| doc_086: | BOTTOM TRACKING : no no yes (yes) yes no no no |
| doc_087: | BLANKING INTERVAL : ... 4 m ... |
| doc_088: | ENSEMBLE AVERAGING INTERVAL : ... 300 s ... |
| doc_089: | SOUND SPEED CALCULATION : ... FUNCTION OF TEMP AT TRANSDUCER ... |
| doc_090: | DIRECT COMMANDS : FH00001 E0005020099 CF25 |
| doc_091: | COMMENTS : A user exit program automatically resets |
| doc_092: | the instrument configuration based upon |
| doc_093: | geographic location. The locations are |
| doc_094: | Port Elizabeth (ELZ), Verrazano Narrows |
| doc_095: | (NAR), New York Bight (NYB), Slope Sea |
| doc_096: | (SLS), Northwest Atlantic (NWA), and |
| doc_097: | Bermuda (BER). NYB and SLS are separated |
| doc_098: | by the shelf break, and SLS and NWA are |
| doc_099: | separated by the mean location of the Gulf |
| doc_100: | Stream. After 93/10/22 the NYB region |
| doc_101: | is split into north and south regions |
| doc_102: | (NBN and NBS). Prior to spring 1993 |
| doc_103: | pulse length, bin length, and number of |
| doc_104: | bins were varied to find the optimal |
| doc_105: | value listed above. During 93/6/25- |
| doc_106: | 93/8/12 a small region named test near |
| doc_107: | the center of the NWA region and |
| doc_108: | having an ensemble interval of several |
| doc_109: | seconds was used to observe the effects |
| doc_110: | of waves on data quality. |
| doc_111: | |
| doc_112: | ADCP DATA ACQUISITION SYSTEM |
| doc_113: | SOFTWARE DEVELOPERS : RDI, Chris Humphries, Charlie Flagg, |
| doc_114: | and Joe Lewkowicz |
| doc_115: | SOFTWARE VERSIONS : DAS 2.48 |
| doc_116: | DATA LOGGER, MAKE/MODEL : Oak Microsystems (12 MHz 386sx) |
| doc_117: | ADCP/LOGGER COMMUNICATION : serial |
| doc_118: | USER BUFFER VERSION : ASCII |
| doc_119: | CLOCK : PC clock |
| doc_120: | COMMENTS : |
| doc_121: | |
| doc_122: | SHIP HEADING |
| doc_123: | INSTRUMENT MAKE/MODEL : Anschutz |
| doc_124: | SYNCHRO OR STEPPER : synchro before 93/6/17, stepper after |
| doc_125: | SYNCHRO RATIO : 360:1 |
| doc_126: | COMPENSATION APPLIED : NO |
| doc_127: | GPS ATTITUDE SYSTEM : Ashtech 3DF installed 94/9/24 |
| doc_128: | LOCATION OF ANTENNAS : Array located on port forward corner |
| doc_129: | of flying bridge, in an L shape |
| doc_130: | with about 3.5 m baseline distance |
| doc_131: | between antennas. |
| doc_132: | RIGID ATTACHMENT : YES - stainless steel rods clamped |
| doc_133: | to brackets welded to rail. |
| doc_134: | LOGGING RATE : 1 per sec |
| doc_135: | COMMENTS : Prior to 93/4/15 the gyrocompass |
| doc_136: | exhibited resets , where it would |
| doc_137: | unexpectedly slew to 0 but then |
| doc_138: | continue to track vessel heading. |
| doc_139: | Since the vessel steams a very nearly |
| doc_140: | constant heading, the resets were |
| doc_141: | corrected for by taking the difference |
| doc_142: | in headings before and after |
| doc_143: | the reset and applying that difference |
| doc_144: | as a heading misalignment angle. |
| doc_145: | During 92/10/30-93/2/27 calibration |
| doc_146: | values for heading misalignment and |
| doc_147: | scale factor were obtained directly |
| doc_148: | from bottom tracking each trip. |
| doc_149: | Between 93/2/27-93/4/15 data are of |
| doc_150: | very poor quality due to bad weather |
| doc_151: | (see QUALITY ASSESSMENT ) and |
| doc_152: | have not been calibrated. The |
| doc_153: | reset problem was solved by using a |
| doc_154: | separate repeater and computer to |
| doc_155: | bypass the DAS-aquired gyrocompass |
| doc_156: | heading. For calibration method |
| doc_157: | after 93/4/15, see CALIBRATION . |
| doc_158: | |
| doc_159: | ANCILLARY MEASUREMENTS |
| doc_160: | SURFACE TEMP AND SALINITY : thermistor at transducer; no salinity |
| doc_161: | PITCH/ROLL MEASUREMENTS : none |
| doc_162: | HYDRO CAST MEASUREMENTS : none |
| doc_163: | BIOMASS DETERMINATION : YES - Using AGCAVE.COM |
| doc_164: | DATE OF LAST CALIBRATION : |
| doc_165: | CALIBRATION COEFFICIENTS : |
| doc_166: | BEAM-AVERAGED AGC AVAILABLE?: YES |
| doc_167: | CALIBRATION NET TOWS? : YES - Plankton recorder towed one |
| doc_168: | trip per month |
| doc_169: | COMMENTS : |
| doc_170: | |
| doc_171: | NAVIGATION |
| doc_172: | TRANSIT : NO |
| doc_173: | GPS : YES |
| doc_174: | MAKE/MODEL : Magnavox MX4200 |
| doc_175: | SELECTIVE AVAILABILITY : YES |
| doc_176: | P-CODE : NO |
| doc_177: | DIFFERENTIAL : NO |
| doc_178: | SAMPLE INTERVAL : 1 per sec |
| doc_179: | LOCATION OF ANTENNA |
| doc_180: | RELATIVE TO TRANSDUCER : antenna on flying bridge, roughly |
| doc_181: | 80 m aft, 8 m to port |
| doc_182: | TIME OBTAINED RELATIVE TO |
| doc_183: | START/END OF ENSEMBLE : end |
| doc_184: | AVERAGING/EDITING APPLIED : |
| doc_185: | LOGGED WITH ADCP DATA : YES - user exit program |
| doc_186: | LOGGED INDEPENDENTLY : NO |
| doc_187: | COMMENTS : |
| doc_188: | OTHER : |
| doc_189: | |
| doc_190: | ADCP DATA PROCESSING/EDITING |
| doc_191: | PERSONNEL IN CHARGE : E. Gottlieb |
| doc_192: | SOUND SPEED CORRECTIONS : applied using transducer temperature |
| doc_193: | DATE OF PROCESSING : present |
| doc_194: | NOTABLE SCATTERING LAYERS : almost every trip a vertically migrating |
| doc_195: | scattering layer is observed just off |
| doc_196: | the shelf break |
| doc_197: | COMMENTS : |
| doc_198: | |
| doc_199: | CALIBRATION |
| doc_200: | GYROCOMPASS CORRECTION : YES - from bottom tracking |
| doc_201: | WATER TRACK METHOD : NO - ship never stops during trip |
| doc_202: | BOTTOM TRACK METHOD : YES |
| doc_203: | AMOUNT OF TIME AVAILABLE : about 6 hours/trip (=about 12.5%) |
| doc_204: | TOTAL No. CALIBRATION PTS: one/trip (after reducing residuals) |
| doc_205: | TIME VARIANT : |
| doc_206: | VELOCITY DEPENDENT : MAYBE - has not yet been observed |
| doc_207: | HEADING DEPENDENT : YES - depending on outbound (heading |
| doc_208: | about 135 deg. T) or inbound (about 315) |
| doc_209: | OUTBOUND INBOUND |
| doc_210: | NUMBER OF TRIPS : 21 19 |
| doc_211: | AMPLITUDE MIN : 1.001 1.001 |
| doc_212: | AMPLITUDE MEAN : 1.014 1.044 |
| doc_213: | AMPLITUDE MAX : 1.047 1.230 |
| doc_214: | AMPLITUDE STD : 0.012 0.055 |
| doc_215: | PHASE MIN : -1.61 0.21 |
| doc_216: | PHASE MEAN : -1.36 0.56 |
| doc_217: | PHASE MAX : -0.74 1.05 |
| doc_218: | PHASE STD : 0.21 0.19 |
| doc_219: | FINAL SELECTION AMPLITUDE : 1.0 1.0 |
| doc_220: | FINAL SELECTION PHASE : -1.4 0.6 |
| doc_221: | AGREEMENT WITH PREVIOUS |
| doc_222: | CRUISES : see statistics above |
| doc_223: | COMMENTS : Bottom tracking is done for about |
| doc_224: | six hours each trip (while traversing |
| doc_225: | the shelf), and after reducing residuals |
| doc_226: | a single value of amplitude and phase |
| doc_227: | is obtained for each trip. Statistics |
| doc_228: | are done for all available trips (see |
| doc_229: | above) and the final selection values |
| doc_230: | (assumed constant over the entire trip) |
| doc_231: | have been used to correct all trips. |
| doc_232: | For calibration method prior to |
| doc_233: | 93/4/16 see SHIP HEADING . |
| doc_234: | |
| doc_235: | NAVIGATION CALCULATION |
| doc_236: | NAVIGATION USED : gps |
| doc_237: | REFERENCE LAYER DEPTH RANGE : bins 5 - 15 |
| doc_238: | FILTERING METHOD FOR |
| doc_239: | SMOOTHING REFERENCE LAYER |
| doc_240: | VELOCITY (FORM/WIDTH) : Blackman window, half-width = 0.5 hour |
| doc_241: | FINALIZED SHIP VEL/POSITIONS |
| doc_242: | STORED IN DATABASE : YES |
| doc_243: | COMMENTS : |
| doc_244: | |
| doc_245: | QUALITY ASSESSMENT |
| doc_246: | ON-STATION VS. UNDERWAY : All data underway, no stations. Quality |
| doc_247: | ranges from excellent to poor depending |
| doc_248: | on load and sea state. |
| doc_249: | VECTOR, CONTOUR, STICK PLOTS: excellent to poor |
| doc_250: | COMMENTS : Data quality is dependent upon load |
| doc_251: | and sea state, most likely due to |
| doc_252: | signal attenuation by a bubble layer |
| doc_253: | under the hull (the hull bottom is |
| doc_254: | perfectly flat). For a quiet seas |
| doc_255: | outbound trips are of excellent quality |
| doc_256: | and inbound are fair; for very heavy |
| doc_257: | seas most data is poor. For moderate |
| doc_258: | seas overall quality ranges from good |
| doc_259: | to marginal. |
| doc_260: | |
| doc_261: | REFERENCES (DATA REPORTS,ETC) : |
| doc_262: | |
| doc_263: | Gottlieb, Rossby, Schwartze, Cornillon, and Flagg (1994). The Oleander |
| doc_264: | Project First-Year Results: Gulf Stream ADCP Measurements from |
| doc_265: | October 1992 to October 1993. Proceedings from the Atlantic |
| doc_266: | Climate Change Program meeting, May 1994, Princeton, NJ. ed. |
| doc_267: | Anne-Marie Wilburn. |
| doc_268: | |
| doc_269: | Gottlieb, Rossby, Schwartze, and Flagg (1995). The Oleander Project: |
| doc_270: | Measuring the Gulf Stream using and ADCP mounted on a Volunteer |
| doc_271: | Observing Ship. Proceedings from the Atlantic Climate Change |
| doc_272: | Program meeting, May 1995, Miami, Florida. ed. Anne-Marie Wilburn. |
| doc_273: | |
| doc_274: | (both available upon request from Anne-Marie Wilburn, AOML/NOAA, |
| doc_275: | 4301 Rickenbacker Cswy, Miami, FL 33149 -or- wilburn@aoml.erl.gov) |
| doc_276: | |
| doc_277: | |
| Unlimited_Dimension: | time |
| depth: | Array of 32 bit Reals [depth = 0..9] long_name: depth units: meters positive: down data_min: 30.00000000000000 data_max: 120.0000000000000 |
||||||
| time: | Array of 32 bit Integers [time = 0..1144] long_name: time units: minutes since 1980-1-1 0:0:0 data_min: 7081774 data_max: 7150395 |
||||||
| decday: | Grid long_name: Decimal Day units: days relative to 1993-1-1 0:0:0 data_min: 168.8989500000000 data_max: 216.5526600000000
| ||||||
| woce_date: | Grid long_name: WOCE date units: yyyymmdd UTC data_min: 19930618 data_max: 19930805
| ||||||
| woce_time: | Grid long_name: WOCE time of day units: hhmmss.dd UTC data_min: 3610.360000000000 data_max: 234219.8800000000
| ||||||
| longitude: | Grid long_name: longitude units: degrees_E data_min: -73.89190000000001 data_max: -64.60129999999999 valid_min: -180.0000000000000 valid_max: 180.0000000000000 instrument: nominally GPS _FillValue: 99999.0000 C_format: %9.4f F_format: f9.4
| ||||||
| latitude: | Grid long_name: latitude units: degrees_N data_min: 32.41220000000000 data_max: 40.47300000000000 valid_min: -90.00000000000000 valid_max: 90.00000000000000 instrument: nominally GPS _FillValue: 99999.0000 C_format: %8.4f F_format: f8.4
| ||||||
| trans_temp: | Grid long_name: ADCP transducer temperature units: degrees C data_min: 16.60000000000000 data_max: 29.40000000000000 _FillValue: 99999.0000 instrument: nominally thermistor valid_min: 0.000000000000000 valid_max: 40.00000000000000 C_format: %4.1f F_format: f4.1
| ||||||
| sd_trans_temp: | Grid long_name: transducer temperature (standard deviation) units: degrees C data_min: 0.01000000000000000 data_max: 1.500000000000000 _FillValue: 99999.0000 instrument: nominally thermistor valid_min: 0.000000000000000 valid_max: 40.00000000000000 C_format: %5.2f F_format: f5.2
| ||||||
| ship_u: | Grid long_name: eastward ship speed (hourly mean) units: meters per second data_min: -7.500000000000000 data_max: 7.200000000000000 _FillValue: 99999.0000 instrument: optimized position based on ADCP and GPS valid_min: -15.00000000000000 valid_max: 15.00000000000000 C_format: %5.1f F_format: f5.1
| ||||||
| sd_ship_u: | Grid long_name: eastward ship speed (standard deviation) units: meters per second data_min: 0.000000000000000 data_max: 3.410000000000000 _FillValue: 99999.0000 instrument: optimized position based on ADCP and GPS valid_min: 0.000000000000000 valid_max: 15.00000000000000 C_format: %5.2f F_format: f5.2
| ||||||
| ship_v: | Grid long_name: northward ship speed (hourly mean) units: meters per second data_min: -6.800000000000000 data_max: 7.100000000000000 _FillValue: 99999.0000 instrument: optimized position based on ADCP and GPS valid_min: -15.00000000000000 valid_max: 15.00000000000000 C_format: %5.1f F_format: f5.1
| ||||||
| sd_ship_v: | Grid long_name: northward ship speed (standard deviation) units: meters per second data_min: 0.000000000000000 data_max: 0.000000000000000 _FillValue: 99999.0000 instrument: optimized position based on ADCP and GPS valid_min: 0.000000000000000 valid_max: 15.00000000000000 C_format: %5.2f F_format: f5.2
| ||||||
| u: | Grid long_name: eastward absolute current velocity (hourly mean) units: meters per second data_min: -1.635000000000000 data_max: 2.032000000000000 _FillValue: 99999.0000 instrument: ADCP/GPS valid_min: -9.900000000000000 valid_max: 9.900000000000000 C_format: %6.3f F_format: f6.3
| ||||||
| v: | Grid long_name: northward absolute current velocity (hourly mean) units: meters per second data_min: -2.401000000000000 data_max: 3.892000000000000 _FillValue: 99999.0000 instrument: ADCP/GPS valid_min: -9.900000000000000 valid_max: 9.900000000000000 C_format: %6.3f F_format: f6.3
|