Tijuana River (TJR) National Estuarine Research Reserve Meteorological Metadata July - December 2001 Latest Update: April 10, 2002 I. Data Set & Research Descriptors 1) Principal investigator(s) & contact persons Contact Persons: Jeff Crooks, Research Coordinator, jcrooks@tijuanaestuary.com Michelle Cordrey, Research Associate, mcordrey@perl.sdsu.edu Web Address: http://www.tijuanaestuary.com 2) Entry verification a) Data Input Procedures: The 15-minute, 1-hour average, and 24-hour meteorological data were downloaded from each instrument on the weather station to a Campbell Scientific CR10X datalogger. The CDMO Data Logger Program (nerr30.csi) was loaded into the CR10X and controls the sensors and data collection schedule (see 2b of the Entry Verification section for the data collection schedule). The CR10X then interfaced with the PC208W software supplied by Campbell Scientific. This software was located on a computer to which the data was uploaded (every 15 minutes) via a short haul modem to a computer located at Tijuana Estuary Visitor's Center. The data was saved as a raw data file (TJR.dat) on the hardrive. Following download from the CR10x the data were automatically uploaded via FTP to a SQL server at San Diego State University and are available near real time via the internet. The data are exported monthly from the SQL server into CDMO Weather Data Management Program (WDMP) to generate error logs (see section 2c for the CDMO Meteorological Data Collection Error/Anomalous Data Criteria), summary reports and to create export files to be sent to the CDMO. The WDMP program was developed in Visual Basic to interface with the NERR Meteorological Data Collection Schedule (see 2b of the Entry Verification section for the data collection schedule). Any anomalous data were investigated and are noted below in the Anomalous Data Section. Any data corrections that were performed are noted in the Data Correction Section below. All error messages and anomalous data were compared to reference data obtained from a nearby (1/2 mile) weather station operated by the NAVY. b) Data Collection Schedule i) Data is collected in the following formats. (1) Sample data points are collected every 15 minutes. (2) Hourly averages are produced every 60 minutes. (3) Daily average, maximum with time, and minimum with time every 24 hours. ii) 15 minute sample point parameters: Date, Time, Air Temperature (c), Relative Humidity (%), LiCor (par), Barometric Pressure (mb), Wind Speed (m/s), Wind Direction, Rainfall (mm) iii) Hourly average parameters: Date, Time, Air Temperature (c), Relative Humidity (%), LiCor (par), Barometric Pressure (mb), Wind Speed (m/s), Wind Direction, Wind Direction Standard Deviation (using Yamartino's Algorithm) iv) Daily Averages parameters: Date, Time, Air Temperature (c), Relative Humidity (%), LiCor (par), Barometric Pressure (mb), Wind Speed (m/s), Wind Direction v) Daily Maximum parameters: Date, Time, Air Temperature (c), Time, Relative Humidity (%), Time, LiCor (par), Time, Barometric Pressure (mb), Time, Wind Speed (m/s), Time, Battery Voltage, Time vi) Daily Minimum parameters: Date, Time, Air Temperature (c), Time, Relative Humidity (%), Time, LiCor (par), Time, Barometric Pressure (mb), Time, Wind Speed (m/s), Time, Battery Voltage, Time c) Error/Anomalous Data Criteria Air Temp: - 15 min sample not greater than max for the day - 15 min sample not less than the min for the day - 15 min sample not greater than 3.0 C from the previous 15 minutes - Max and min temp recorded for the day - 1 hour average not greater than 10% above the greatest 15 min sample recorded in the hour Relative Humidity: - Not changed by more than 25% from the previous 15 minutes - Max and min humidity recorded for the day - 1 hour average not greater than 10% above the greatest 15 min sample recorded in the hour Rainfall: - Precipitation not greater than 5 mm in 15 min - No precipitation for the month Wind Speed: - Wind speed greater than 30 m/s - Wind speed less than .5 m/s Wind Direction: - Wind direction not greater than 360 degrees - Wind direction not less than 0 degrees Pressure: - Pressure greater than 1040 mb or less than 980 mb - Pressure changes greater than 5 mb per hour - Maximum and minimum values recorded for the day - 1 hour average not greater than 10% above the greatest 15 min sample recorded in the hour Time: - 15 minute interval recorded For all data: - Duplicate interval data 3) Research objectives (Campbell Weather Station): The principal objective is to record long-term meteorological data for the Tijuana Estuary in order to observe any environmental changes or trends over time. Samples were taken every 5 seconds and 15 minutes over roughly one month collecting intervals. 4) Research methods: The Campbell Scientific weatherstation samples every 5 seconds to produce both hourly and daily averages of those measurements of air temperature, relative humidity, barometric pressure, rainfall, wind speed and wind direction. An instantaneous sample is taken every 15 minutes and that data is stored in array 150. A one-week sampling interval was chosen so that the CR10X datalogger would not run out of room and overwrite data, especially if the short haul modem link failed and data could not be automatically sent from the datalogger to the computer. If this were the case, the data would have to be downloaded at the storage module to a laptop or the storage module would be replaced and brought back to the lab for uploading following procedures in Part D. Section 4.5 of the CDMO Operations Manual. Periodically, sensors on the weatherstation are inspected for damage or debris. If any is found, it is repaired and/or cleaned. Sensors are removed and sent back to Campbell Scientific for calibration at minimum of every two years. There were no other analyses done on the meteorological data at present. 5) Site location and character: The Tijuana River NERR is located on the Southern Pacific Coast, next to the California border with Mexico at a latitude of 32 deg. 34 min. N and Longitude of 117 deg. 07 min. W. The area surrounding the 2,531 acre reserve is heavily developed by residential housing as is the watershed which drains into the estuary. Approximately 2/3 of the watershed is in Mexico and is subject to periodic raw sewage outflows. The North Eastern section of is bordered by a military helicopter training base. Vegetation in the area is dominated by common pickleweed (Spartina virginica) and Pacific cordgrass (Spartina foliosa). Descriptions of the specific sampling station follows: The weather station is located approximately 30m west of the TR NERR Visitor Centor at a Latitude of 32deg 34min 28.32sec N and a Longitude of 117deg 07min 37.05sec W. The station is 50m north of the water quality sampling station. The vegetation surrounding the weather station are mainly upland scrub species. The anemometer, wind direction and Licor sensors are located at the top of a 3.5 meter aluminum tower. The temperature and humidity sensors are located midway up and on the west side of the tower. The Tipping Bucket rain gauge sits on a separate 2 meter high pole located approx. a meter to the west of the main tower. It is above the ground to limit interference from the security fence surrounding the weather station. The sensors were wired to the CR10X following the protocol in the CDMO Manual. 6) Data collection period: Weather data collection began at the Tidal Linkage station in 1999. However, since too long a period between calibrations of sensors had elapsed, data prior to July 2001 has been determined not to sufficiently reliable. 7) Distribution: According to the Ocean and Coastal Resource Management Data Dissemination Policy for the NERRS System-wide Monitoring Program, NOAA/ERD retains the right to analyze, synthesize and publish summaries of the NERRS System-wide Monitoring Program data. The PI retains the right to be fully credited for having collected and processed the data. Following academic courtesy standards, the PI and NERR site where the data were collected will be contacted and fully acknowledged in any subsequent publications in which any part of the data are used. Manuscripts resulting from the NOAA/OCRM supported research that are produced for publication in open literature, including refereed scientific journals, will acknowledge that the research was conducted under an award from the Estuarine Reserves Division, Office of Ocean and Coastal Resource Management, National Ocean Service, National Oceanic and Atmospheric Administration. The data set enclosed within this package/transmission is only as good as the quality assurance/quality control procedures outlined by the enclosed metadata reporting statement. The user bears all responsibility for its subsequent use/misuse in any further analyses or comparisons. The Federal government does not assume liability to the Recipient or third persons, nor will the Federal government reimburse or indemnify the Recipient for its liability due to any losses resulting in any way from the use of this data. NERR weather data and metadata can be obtained from the Research Coordinator at the individual NERR site (please see Section 1 Principal investigators and contact persons), from the Data Manager at the Centralized Data Management Office (please see personnel directory under the general information link on the CDMO home page) and online at the CDMO home page http://inlet.geol.sc.edu/cdmohome.html. Data are available in text format and Access data tables. 8) Associated researchers and projects: The Tijuana River NERR has a water quality station located at the Tidal Linkage. The principal objective of this study is to record long-term water quality data for the Tijuana Estuary in order to observe any physical changes or trends in water quality both spatially and over time. Additionally, NERR SWMP tier 1 nutrient monitoring is being conducted at the Tidal Linkage station. II. Physical Structure Descriptors 9) Sensor specifications, operating range, accuracy, date of last calibration: LiCor Quantum Sensor Model # LI190SB Stability: <±2% change over 1 yr Operating Temperature: -40 to 65°C Sensitivity: typically 5 µA per 1000µmoles s-1 m-2 Light spectrum wavelength: 400 to 700 nm Date of last calibration: 04/17/01 Wind Sentry Model # 03001 R.M Young Range: 0-50 m/s; 360° mechanical Date of last calibration: May 2001 Temperature and Relative Humidity Model #: HMP35C Operating Temperature: -35-+50°C Temperature Measurement Range: -35-+50°C Temperature Accuracy: ± 0.2 °C (0-60°C) Relative Humidity Operating Temperature: : -20-+60°C Relative Humidity Measurement Range: 0-100% non-condensing RH Accuracy: +/-2% RH (0-90%) and +/-3%(90-100%) Date of Last calibration: May 2001 Barometric Sensor Model # CS-105 Operating Range: Pressure - 600-1060 mb Temperature: -40-+60C Humidity: non-condensing Accuracy: ±0.5 to 6.0 mb (+20-60C) Stability: ± 0.1 mb per year Date of Last calibration: not known Tipping Bucket Rain Gauge Model #: TE 525 Range: 0.1 mm Accuracy: 1.0% at <2"/hr Date of Last calibration: June 2001 10) Coded variable indicator and variable code definitions: Site definitions: TL = Tidal Linkage 11) Data anomalies/Data corrections: July 2001 See missing data section below for data removed. August 2001 All data missing. Failure to download data caused memory overwrite September 2001 All data missing. Failure to download data caused memory overwrite October 2001 November 2001 It could not be determined if data are correct. Hourly data correlate to reference station but no 15 min data available for reference station. Array ID Date Time Error Message 150 333 145 Rel hum difference from 29 (333) 145 (41.875) to 29 (333) 200 (100) is greater than 25% 150 333 200 Rel hum difference from 29 (333) 200 (100) to 29 (333) 215 (.13444) is greater than 25% 150 333 245 Rel hum difference from 29 (333) 245 (.33618) to 29 (333) 300 (100) is greater than 25% 150 333 315 Rel hum difference from 29 (333) 315 (100) to 29 (333) 330 (.13448) is greater than 25% 150 333 400 Rel hum difference from 29 (333) 400 (.13448) to 29 (333) 415 (100) is greater than 25% 150 333 430 Rel hum difference from 29 (333) 430 (100) to 29 (333) 445 (62.061) is greater than 25% The following data appear to be correct: 151 309 2100 Precip difference from 5 (309) 2100 (.508) to 5 (309) 2115 (6.096) is greater than 5 mm The following data appear to be correct: Array ID Date Time Error Message 102 305 2000 Wind speed is less than 0.5 m/s from 1 (305) 2000 to 2 (306) 800 102 306 1900 Wind speed is less than 0.5 m/s from 2 (306) 1900 to 3 (307) 900 It could not be determined if data are correct. Hourly data correlate to reference station and sensor working properly. Array ID Date Time Error Message 101 333 500 Relative humidity average in 1 hour data (52.966) is less than 15 minute minimum (62.061) by at least 10% December 2001 Array ID Date Time Error Message 150 347 1815 Air temp difference from 13 (347) 1815 (12.784) to 13 (347) 1830 (9.5154) is greater than 3.0 degrees C It could not be determined if data are correct. Hourly data correlate to reference station but no 15 min data available for reference station. Array ID Date Time Error Message 150 341 1130 Rel hum difference from 7 (341) 1130 (35.032) to 7 (341) 1145 (60.127) is greater than 25% 150 342 2000 Rel hum difference from 8 (342) 2000 (68.167) to 8 (342) 2015 (35.124) is greater than 25% 150 342 2015 Rel hum difference from 8 (342) 2015 (35.124) to 8 (342) 2030 (81.531) is greater than 25% 150 351 130 Rel hum difference from 17 (351) 130 (59.766) to 17 (351) 145 (100) is greater than 25% 150 351 145 Rel hum difference from 17 (351) 145 (100) to 17 (351) 200 (56.412) is greater than 25% 150 351 315 Rel hum difference from 17 (351) 315 (64.28) to 17 (351) 330 (.13448) is greater than 25% 150 351 330 Rel hum difference from 17 (351) 330 (.13448) to 17 (351) 345 (100) is greater than 25% 150 351 400 Rel hum difference from 17 (351) 400 (100) to 17 (351) 415 (.13448) is greater than 25% 150 351 430 Rel hum difference from 17 (351) 430 (.13448) to 17 (351) 445 (100) is greater than 25% 150 351 445 Rel hum difference from 17 (351) 445 (100) to 17 (351) 500 (.13448) is greater than 25% 150 351 500 Rel hum difference from 17 (351) 500 (.13448) to 17 (351) 515 (100) is greater than 25% 150 351 515 Rel hum difference from 17 (351) 515 (100) to 17 (351) 530 (.13448) is greater than 25% 150 351 545 Rel hum difference from 17 (351) 545 (.13448) to 17 (351) 600 (79.207) is greater than 25% 150 351 600 Rel hum difference from 17 (351) 600 (79.207) to 17 (351) 615 (26.29) is greater than 25% 150 351 615 Rel hum difference from 17 (351) 615 (26.29) to 17 (351) 630 (64.212) is greater than 25% 150 351 630 Rel hum difference from 17 (351) 630 (64.212) to 17 (351) 645 (31.871) is greater than 25% 150 351 645 Rel hum difference from 17 (351) 645 (31.871) to 17 (351) 700 (74.231) is greater than 25% 150 351 700 Rel hum difference from 17 (351) 700 (74.231) to 17 (351) 715 (44.982) is greater than 25% 150 352 245 Rel hum difference from 18 (352) 245 (84.893) to 18 (352) 300 (53.571) is greater than 25% 150 352 445 Rel hum difference from 18 (352) 445 (54.109) to 18 (352) 500 (100) is greater than 25% 150 352 500 Rel hum difference from 18 (352) 500 (100) to 18 (352) 515 (.13443) is greater than 25% 150 352 645 Rel hum difference from 18 (352) 645 (1.7482) to 18 (352) 700 (100) is greater than 25% 150 352 715 Rel hum difference from 18 (352) 715 (100) to 18 (352) 730 (64.414) is greater than 25% 150 353 430 Rel hum difference from 19 (353) 430 (100) to 19 (353) 445 (11.83) is greater than 25% 150 353 515 Rel hum difference from 19 (353) 515 (2.4202) to 19 (353) 530 (39.129) is greater than 25% 150 353 530 Rel hum difference from 19 (353) 530 (39.129) to 19 (353) 545 (100) is greater than 25% 150 353 630 Rel hum difference from 19 (353) 630 (100) to 19 (353) 645 (35.972) is greater than 25% 150 353 645 Rel hum difference from 19 (353) 645 (35.972) to 19 (353) 700 (92.385) is greater than 25% 150 354 515 Rel hum difference from 20 (354) 515 (100) to 20 (354) 530 (63.854) is greater than 25% 150 354 600 Rel hum difference from 20 (354) 600 (100) to 20 (354) 615 (69.837) is greater than 25% 150 361 545 Rel hum difference from 27 (361) 545 (46.715) to 27 (361) 600 (83.952) is greater than 25% 150 361 600 Rel hum difference from 27 (361) 600 (83.952) to 27 (361) 615 (11.427) is greater than 25% 150 361 615 Rel hum difference from 27 (361) 615 (11.427) to 27 (361) 630 (100) is greater than 25% 150 361 645 Rel hum difference from 27 (361) 645 (78.642) to 27 (361) 700 (52.495) is greater than 25% The following data appear to be correct: Array ID Date Time Error Message 102 358 2000 Wind speed is less than 0.5 m/s from 24 (358) 2000 to 25 (359) 1000 102 363 1800 Wind speed is less than 0.5 m/s from 29 (363) 1800 to 30 (364) 800 It could not be determined if data are correct. Hourly data correlate to reference station and sensor working properly. 101 352 600 Relative humidity average in 1 hour data (51.042) is greater than 15 minute maximum (.13446) by at least 10% 12) Missing data: July 2001 Array ID Date Time Error Message 150 212 1245 Missing 150 Array data (15 minute data) from 31 (212) 1245 to 31 (212) 2400 101 212 1300 Missing 101 Array data (Hourly Averages) from 31 (212) 1300 to 31 (212) 2400 102 212 1300 Missing 102 Array data (Hourly Average Wind Parameters) from 31 (212) 1300 to 31 (212) 2300 Data were removed for the following arrays, dates and times due to malfunctioning wind direction sensor: Array ID Date Time Error Message 102 182 100 Technician changed 102 Array from 1 (182) 100 to 31 (212) 1200 150 182 15 Technician changed 150 Array data from 1 (182) 15 to 31 (212) 1230 242 182 2400 Technician changed 242 Array from 1 (182) 2400 to 30 (211) 2400 August 2001 All data missing. Failure to download data caused memory overwrite September 2001 All data missing. Failure to download data caused memory overwrite October 2001 Data missing for the following arrays, dates and times. Failure to download data caused memory overwrite Array ID Date Time Error Message 150 275 15 Missing 150 Array (15 minute data) 150 274 30 Missing 150 Array data (15 minute data) from 1 (274) 30 to 9 (282) 1000 101 274 100 Missing 101 Array (Hourly Averages) 101 274 100 Missing 101 Array data (Hourly Averages) from 1 (274) 100 to 9 (282) 1000 102 274 100 Missing 102 Array (Hourly Average Wind Parameters) 102 274 100 Missing 102 Array data (Hourly Average Wind Parameters) from 1 (274) 100 to 9 (282) 1000 241 274 2400 Missing 241 data (Daily Averages) from 1 (274) 2400 to 8 (281) 2400 242 274 2400 Missing 242 data (Daily Average Wind Parameters) from 1 (274) 2400 to 8 (281) 2400 243 274 2400 Missing 243 data (Daily Max/Time Values) from 1 (274) 2400 to 8 (281) 2400 244 274 2400 Missing 244 data (Daily Min/Time Values) from 1 (274) 2400 to 8 (281) 2400 Data were removed for the following arrays, dates and times due to malfunctioning wind direction sensor: Array ID Date Time Error Message 102 282 1100 Technician changed 102 Array data at 9 (282) 1100 to 31 (304) 2400 150 282 1015 Technician changed 150 Array data at 9 (282) 1015 to 31 (304) 2400 242 282 2400 Technician changed 242 Array data at 9 (282) 2400 to 31 (304) 2400 November 2001 Data missing for the following arrays, dates and times. Failure to download data caused memory overwrite Array ID Date Time Error Message 150 314 1415 Missing 150 Array data (15 minute data) from 10 (314) 1415 to 13 (317) 1100 101 314 1500 Missing 101 Array data (Hourly Averages) from 10 (314) 1500 to 13 (317) 1100 102 314 1500 Missing 102 Array data (Hourly Average Wind Parameters) from 10 (314) 1500 to 13 (317) 1000 241 314 2400 Missing 241 data (Daily Averages) from 10 (314) 2400 to 12 (316) 2400 242 314 2400 Missing 242 data (Daily Average Wind Parameters) from 10 (314) 2400 to 12 (316) 2400 243 314 2400 Missing 243 data (Daily Max/Time Values) from 10 (314) 2400 to 12 (316) 2400 244 314 2400 Missing 244 data (Daily Min/Time Values) from 10 (314) 2400 to 12 (316) 2400 Data were removed for the following arrays, dates and times due to malfunctioning wind direction sensor: Array ID Date Time Error Message 102 305 100 Technician changed 102 Array from 1 (305) 100 to 10 (314) 1400 102 317 1100 Technician changed 102 Array data at 13 (317) 1100 to 30 (334) 2400 150 305 15 Technician changed 150 Array data from 1 (305) 15 to 10 (314) 1400 150 317 1115 Technician changed 150 Array data at 13 (317) 1115 to 30 (334) 2400 242 305 2400 Technician changed 242 Array from 1 (305) 2400 to 9 (313) 2400 242 317 2400 Technician changed 242 Array data at 13 (317) 2400 to 30 (334) 2400 December 2001 Data were removed for the following arrays, dates and times due to malfunctioning wind direction sensor: Array ID Date Time Error Message 102 335 100 Technician changed 102 Array data at 1 (335) 100 to 31 (365) 2400 150 335 15 Technician changed 150 Array data at 1 (335) 15 to 31 (365) 2400 242 335 2400 Technician changed 242 Array data at 1 (335) 2400 to 31 (365) 2400 13) Other remarks: