2010 - 2011 Vessel Collected ADCP from the Klondike, Burger, and Statoil Survey Areas in the Chukchi Sea

Metadata:

• Identification_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Metadata_Reference_Information
• Data_Quality_Information
• Distribution_Information

Identification_Information:

Citation:

Citation_Information:

Title:

2010 - 2011 Vessel Collected ADCP from the Klondike, Burger, and Statoil Survey Areas in the Chukchi Sea

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: pacmars.eol.ucar.edu

Originator: Dr. Thomas J. Weingartner, University of Alaska

Publication_Date: February 2013

Edition: 2

Online_Linkage: www.chukchiscience.com

Description:

Abstract:

This data set was collected as part of the Chukchi Sea Environmental Studies Program (CSESP), a multi-year, interdisciplinary ecological study focused on areas in outer continental shelf oil and gas leases in the northeastern Chukchi Sea. In 2008 when the program began, two 30 x 30 nautical mile study area boxes were developed around areas of interest to ConocoPhillips and Shell. The ConocoPhillips study area (named Klondike), and the Shell study area (named Burger) became the focus of data collection. Data were collected from these two study areas again in 2009. Then, in 2010, Statoil joined the program, and a third study area, Statoil, was created and sampled as well as Klondike and Burger. In 2011, the scope of the study area was expanded to include the Hanna Shoal Regional Study Area.
The CSESP interdisciplinary studies include acoustic monitoring, baseline chemistry, benthic ecology, chemical oceanography, fisheries ecology, marine mammal ecology, physical oceanography, plankton ecology and nutrients, and seabird observations.
This dataset contains Acoustic Doppler Current Profiler (ADCP) data collected with a Teledyne RDI 600 kHz Workhorse Monitor ADCP in the Chukchi Sea during the open water season 2010-2011. Mounted on the research vessel the Westward Wind, the ADCP was run continuously during survey cruises that collected oceanographic condition measurements and biological data at fixed sampling station locations and along transect lines. ADCP data parameters include the name of the vessel the data was collected on; the dates and times in Greenwich Mean Time that the data was collected; the latitude and longitude of the location the data was collected at; the total water depth and bin depth at which the data was collected; the east to west, north to south, vertical, and error velocity; the percentage of good measurements in the ensemble; the vessel speed and orientation; the name of the contractor who recorded and analyzed the data; the title of the annual report the data set supports; and as applicable, notes regarding a data record.

Purpose:

The objectives of the Chukchi Sea Environmental Baseline Studies Program are: 1. To provide data for pre-exploration and development-related activities 2. To provide data for permit applications 3. To provide input to planning of future operations and associated mitigation 4. To provide additional baseline data that can be used to assess and measure the potential environmental effects of offshore oil and gas exploration and development in the northeastern Chukchi Sea

Supplemental_Information:

This metadata file has not been reviewed by the contractor who created the data set.
To download the annual report listed under REPORT field in table, please see www.chukchiscience.org.
Edition 2 Updates: Appended 2011 data, updated metadata to include details about 2011 season, geographic projection updated from NAD83 to WGS84.
The system used to collect the ADCP data was a 600 kHz Teledyne RDI Workhorse Monitor, which was attached to a downward-facing pole. The ADCP was connected to the main computer located on the vessel for real-time data collection through RDI software. Initial data screenings were performed in the Teledyne RDI software package VmDas. Final data assessment and transformations were made in the MATLAB programming language with custom software. Instrument setup and data screening thresholds and parameters are listed below.
Setup and Navigation: • System: Teledyne RDI Workhorse • Frequency: 600 kHz • Installation: Vessel-attached pole-mount • Orientation: Downward • Operating mode: Broadband • Bottom track: Yes • Time per ping: 1 s • Number of bins: 25 • Bin size: 2 m • Blanking distance: 2 m • Transducer Depth: 3 m • Ship position: National Marine Electronics Association (NMEA) 1 GGA • Ship speed: NMEA2 VTG • Tilt source: ADCP internal tilt sensor • Heading source: NMEA2 HDT • Alignment Error: 40.38?
VmDAS averaging and data screening thresholds: • STA average interval: 60 s • Profile Ping Normalization reference layer: Bins 3-10 • Water Current Profile Received Signal Strength Indicator: 80 counts • Water Current Profile Correlation: 180 counts • Water Current Profile Error Velocity: 1 m/s • Water Current Profile Vertical Velocity: 1 m/s • Water Current Profile Fish target: 50 counts • Water Current Profile Percent Good: 50% • Bottom Track Received Signal Strength Indicator: 30 counts • Bottom Track Correlation: 220 counts • Bottom Track Error Velocity: 1 m/s • Bottom Track Vertical Velocity: 1 m/s • Bottom Track Fish: 50 counts • Bottom Track Percent Good: 50%
QA/QC thresholds and corrections applied to 1-minute STA ensembles: • Minimum correlation: 64 • Minimum percent-good 4-beam + 3-beam solutions: 50% • Minimum percent-good bottom track pings: 25 • Blanking above bottom (% of distance to transducer): 6% • Maximum heading standard deviation: 3 • Maximum change in speed: 0.2 m/s • Minimum speed: 1.5 m/s • Maximum vertical velocity: 0.1 m/s • Maximum error velocity: 0.05 m/s • Minimum good fraction of water profile allowed: 2/3 • Individual ensemble cross-track magnitude/direction corrections • Transducer mis-alignment correction: -0.49? • Ensembles removed with unrealistically large mean velocity (> 2 m/s) • Removed adjacent ensembles with unrealistically large change in velocity • Truncated bins based on largest/smallest 0.25% outliers.
Below are specifications for the 600 kHz Workhorse ADCP Teledyne:
Operating Temperature (C): -5 to 45 Beam Angle (degrees): 20 Temperature Sensor: Range (C): -5 to 45; Precision (C): +/- 0.4; Resolution (C): 0.01 Profiler Parameters: Velocity Profiler: 0.3% of the water velocity relative to the ADCP +/- 3cm/s; Velocity Resolution: .01 cm/s;Velocity Range: +/-5 m/s to +/- 20 m/s; Number of Depth Cells: 1 to 255 Water Profiling: Sample collection rate: 2 ping/s; Bin Size (depth cell size): 2 m; Data Average: 10 min; Range: 47 m; Standard Deviation: 3 cm/s

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2010

Ending_Date: 2011

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -168.532490

East_Bounding_Coordinate: -156.371740

North_Bounding_Coordinate: 72.656120

South_Bounding_Coordinate: 64.474590

Keywords:

Place:

Place_Keyword: Alaska

Place_Keyword: Chukchi Sea

Place_Keyword_Thesaurus: None

Place_Keyword: Arctic Ocean

Theme:

Theme_Keyword: ADCP

Theme_Keyword: Acoustic Doppler Current Profiler

Theme_Keyword: Sea Water

Access_Constraints: None

Use_Constraints:

User shall not employ selective use of this data; data must be used in its entirety. User must comprehend all information contained within the metadata, especially as it pertains to data quality and spatial coverage of data. User must ensure that the most recent version of data and metadata are used. User must contact data originator of biological data before using such data in a publication. Acknowledgment of data originator and all points of contact listed for data would be appreciated.

Data_Set_Credit:

ConocoPhillips, Shell, and Statoil would like to express their appreciation to Olgoonik Fairweather, LLC and Dr. Thomas J. Weingartner et al. at the University of Alaska for their efforts in creating this data set.

Security_Information:

Native_Data_Set_Environment:

The ADCP was connected to the collection computer on board the R/V Westward Wind for real-time data collection through RDI software. Data was automatically archived to the root directory of the program. Files were limited to 1,414 kB. File names were automated by the software. File extensions included log, lta, sta, nms, n1r, n2r, enr, ens, and enx.
This data set has been saved in a *.csv file format.

Point_of_Contact:

Contact_Information:

Contact_Position: Senior Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: ConocoPhillips, 700 G Street

City: Anchorage

State_or_Province: AK

Postal_Code: 99501

Contact_Instructions:

Please contact Data Distributor for information about obtaining data (see metadata section 6).

Contact_Organization_Primary:

Contact_Organization: ConocoPhillips

Point_of_Contact:

Contact_Information:

Contact_Position: Senior Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: Shell, 3601 C Street, Suite 1000

City: Anchorage

State_or_Province: AK

Postal_Code: 99503

Contact_Instructions:

Please contact Data Distributor for information about obtaining data (see metadata section 6).

Contact_Organization_Primary:

Contact_Organization: Shell

Point_of_Contact:

Contact_Information:

Contact_Position: HSE Manager

Contact_Address:

Address_Type: mailing and physical address

Address: Statoil, 3800 Centerpoint, Suite 920

City: Anchorage

State_or_Province: AK

Postal_Code: 99503

Contact_Instructions:

Please contact Data Distributor for information about obtaining data (see metadata section 6).

Contact_Organization_Primary:

Contact_Organization: Statoil

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 523557

Spatial_Reference_Information:

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 0.000100

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Acoustic Doppler Current Profiler (ADCP)

Entity_Type_Definition:

An ADCP is an instrument uses acoustic signals to measure water current.

Entity_Type_Definition_Source: CSESP Program

Attribute:

Attribute_Label: SHIP

Attribute_Definition: Vessel used for data collection.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Westward Wind

Enumerated_Domain_Value_Definition: Vessel Name

Enumerated_Domain_Value_Definition_Source: CSESP Program

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Norseman II

Enumerated_Domain_Value_Definition: Vessel Name

Enumerated_Domain_Value_Definition_Source: CSESP Program

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Bluefin

Enumerated_Domain_Value_Definition: Vessel Name

Enumerated_Domain_Value_Definition_Source: CSESP Program

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: DATE_TIME_GMT

Attribute_Definition:

Date and time in GMT sample was collected in mm/dd/yyyy hh:mm:ss AM/PM format.

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Greenwich Mean Time

Attribute_Measurement_Resolution: Seconds

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: LATITUDE

Attribute_Definition:

Latitude at sample collection location in decimal degrees WGS84.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 90

Attribute_Units_of_Measure: Decimal Degrees

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: LONGITUDE

Attribute_Definition:

Longitude at sample collection location in decimal degrees WGS84.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -180

Range_Domain_Maximum: 0

Attribute_Units_of_Measure: Decimal Degrees

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: DEPTH_M

Attribute_Definition: Water depth in meters.

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 0.1

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: TEMP_WTR_C

Attribute_Definition:

Water temperature at the ADCP transducer head in degrees Celsius.

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Degrees Celsius

Attribute_Measurement_Resolution: 0.01

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: BIN_NUMBER

Attribute_Definition:

Bin number of velocity measurement with 1 being closest to the transducer.

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Count

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: DEPTH_BIN_M

Attribute_Definition: Depth of bin in meters.

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters

Attribute_Measurement_Resolution: 0.1

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: U_VELOCITY_MPS

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters per second

Attribute_Measurement_Resolution: 0.001

Attribute_Definition: The east to west velocity in meters per second.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: V_VELOCITY_MPS

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters per second

Attribute_Measurement_Resolution: 0.001

Attribute_Definition: The north to south velocity in meters per second.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: W_VELOCITY_MPS

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters per second

Attribute_Measurement_Resolution: 0.001

Attribute_Definition: The vertical velocity in meters per second.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: ERROR_VELOCITY_MPS

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters per second

Attribute_Measurement_Resolution: 0.001

Attribute_Definition: The error velocity in meters per second.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: PERCENT_GOOD

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 1

Attribute_Definition: The percent of good measurements in the ensemble.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: BM_TRACK_SPEED_MPS

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Meters per second

Attribute_Measurement_Resolution: 0.001

Attribute_Definition: Vessel speed in meters per second.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: BM_TRACK_HDG_DEG

Attribute_Domain_Values:

Range_Domain:

Attribute_Units_of_Measure: Degrees

Attribute_Measurement_Resolution: 0.1

Attribute_Definition: Vessel orientation in degrees.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: CONTRACTOR

Attribute_Definition: Company contracted to collect and/or analyze data

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: UAF

Enumerated_Domain_Value_Definition: University of Alaska Fairbanks

Enumerated_Domain_Value_Definition_Source: University of Alaska Fairbanks

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: UAF

Enumerated_Domain_Value_Definition: University of Alaska Fairbanks

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: REPORT

Attribute_Definition: Title of annual report that data supports.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value:

Physical Oceanographic Measurements in the Klondike and Burger Survey Areas of the Chukchi Sea: 2008-2010

Enumerated_Domain_Value_Definition: Title of annual report that data supports.

Attribute_Definition_Source: CSESP Program

Attribute:

Attribute_Label: NOTES

Attribute_Definition: For notes concerning this record.

Attribute_Domain_Values:

Unrepresentable_Domain: Free Text, for notes concerning this record.

Attribute_Definition_Source: CSESP Program

Overview_Description:

Entity_and_Attribute_Overview:

This data set contains ocean currents data for the Chukchi Sea collected by a ship mounted Acoustic Doppler Current Profiler (ADCP). Variables measured and derived include latitude, longitude, water temperature, water depth, ship speed, ship direction, east/west/vertical/error velocity components and percent-good pings.

Metadata_Reference_Information:

Metadata_Date: 20130222

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints:

ConocoPhillips, Shell, and Statoil make no representation or warranty, express or implied, with regard to any of these data or metadata, as used alone or in combination with another data set, and expressly disclaim any representation or warranty. It is the responsibility of the data user to fully comprehend the metadata before use of the data. Each person accessing or using the data or metadata assumes all risks and all liabilities arising from or associated with such access or use. ConocoPhillips, Shell and Statoil shall have no responsibility or liability for any errors or omissions in the data or metadata or for any improper or incorrect use of the data or metadata.

Metadata_Security_Information:

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: ConocoPhillips

Contact_Position: Senior Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: ConocoPhillips, 700 G Street

City: Anchorage

State_or_Province: AK

Postal_Code: 99501

Contact_Instructions:

Please contact Data Distributor for information about obtaining data (see metadata section 6).

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Shell

Contact_Position: Senior Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: Shell, 3601 C Street

City: Anchorage

State_or_Province: AK

Postal_Code: 99503

Contact_Instructions:

Please contact Data Distributor for information about obtaining data (see metadata section 6).

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Statoil

Contact_Position: HSE Manager

Contact_Address:

Address_Type: mailing and physical address

Address: Statoil, 3800 Centerpoint

City: Anchorage

State_or_Province: AK

Postal_Code: 99503

Contact_Instructions:

Please contact Data Distributor for information about obtaining data (see metadata section 6).

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description: ADCP data recording began (2010 season).

Process_Date: 20100803

Process_Step:

Process_Description:

Three day data gap when ADCP data files and navigation files were not synchronized with one another.

Process_Date: 20100816

Process_Step:

Process_Description: Normal data collection resumed.

Process_Date: 20100819

Process_Step:

Process_Description:

ADCP Data from cruise WWW1002 transferred from Aldrich Offshore Services to Resource Data, Inc on an external hard drive.

Process_Date: 20100831

Process_Time: 17:00:00

Process_Step:

Process_Description:

ADCP Data from cruise WWW1003 transferred from Aldrich Offshore Services to Resource Data, Inc on an external hard drive.

Process_Date: 20101015

Process_Time: 15:00:00

Process_Step:

Process_Description:

ADCP Data from cruise WWW1005 transferred from Aldrich Offshore Services to Resource Data, Inc on an external hard drive.

Process_Date: 20101015

Process_Time: 15:00:00

Process_Step:

Process_Description: ADCP data recording stopped (2010 season).

Process_Date: 20101018

Process_Step:

Process_Description:

ADCP Data from cruise WWW1006 transferred from Aldrich to Resource Data, Inc on an external hard drive.

Process_Date: 20101015

Process_Time: 15:00:00

Process_Step:

Process_Description:

ADCP Data from cruise WWW1001 transferred from Aldrich to Resource Data, Inc on an external hard drive.

Process_Date: 20101019

Process_Time: 13:35:00

Process_Step:

Process_Description:

2010 Cruise data organized, copied to DVD, DVD sent to Dr. Thomas J. Weingartner.

Process_Date: 20101119

Process_Step:

Process_Description:

Raw 2010 data were processed using Seabird routines and averaged into 1 meter bins.

Process_Date: 201106

Process_Step:

Process_Description:

2010 data profiles were visually inspected using a MATLAB script. Density inversions were removed and replaced with linearly interpolated temperature and/or salinity (DATA_FLAG=2). Bad data at the surface were replaced with extrapolations from data below (DATA_FLAG=1).

Process_Date: 201106

Process_Step:

Process_Description:

Processed 2010 final data delivered from Dr. Thomas Weingarner to Olgoonik/Fairweather, LLC in .csv format.

Process_Date: 20110926

Process_Step:

Process_Description: No process steps described for 2011 data.

Attribute_Accuracy:

Attribute_Accuracy_Report:

There is a large data gap of approximately fifteen days in late September when the Westward Wind was being used for research in the Beaufort Sea and another approximately three day gap in mid-August, beginning on August 16th with normal data collection resuming on August 19th when ADCP data files and navigation files were not synchronized with one another. Gaps where data were collected, but were poor quality, mostly correspond to periods of high winds where a rough sea state presumably caused bubble entrainment below the transducer. Overall, data quality decreased when the vessel was in heavy seas. During data processing, each one second ping (data recording) was grouped into one minute ensembles and averaged into six-hour bins, with each bin number two meters apart. In order to form a 6-hour average, at least 25% of the ensembles collected during that 6-hour period had to have had good data.

Logical_Consistency_Report:

When grouping the one second pings or data recordings from the ADCP, the following conditions had to be met for the data to be included: -A minimum correlation of 64 % -A minimum percent good 4-beam +3-beam solutions of 50% -A minimum percent-good bottom track pings of 25% -Blanking above bottom threshold (% of distance to transducer) of 6% -Maximum heading standard deviation of 3 -Maximum change in speed of 0.2 m/s -Minimum speed of 1.5 m/s -Maximum vertical velocity of 0.1 m/s -Maximum error velocity of 0.05 m/s -Minimum good fraction of water profile allowed 2/3 -Individual ensemble cross-track magnitude/direction corrections -Transducer mis-alignment corrections -0.49 - Ensembles were removed with unrealistically large mean velocities (> 2 m/s) - Removed adjacent ensembles with unrealistically large change in velocity -0.25% of outliers were removed

Completeness_Report:

There is a large data gap of approximately fifteen days in late September when the Westward Wind was being used for research in the Beaufort Sea and another approximately three day gap in mid-August, beginning on August 16th with normal data collection resuming on August 19th when ADCP data files and navigation files were not synchronized with one another. Gaps where data were collected, but were poor quality, mostly correspond to periods of high winds where a rough sea state presumably caused bubble entrainment below the transducer. Overall, data quality decreased when the vessel was in heavy seas.

Distribution_Information:

Resource_Description: Downloadable Data

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: National Center for Atmospheric Research

Contact_Person: Earth Observing Laboratory

Contact_Address:

Address_Type: mailing and physical

Address: 3450 Mitchell Lane

City: Boulder

State_or_Province: CO

Postal_Code: 80301

Country: USA

Contact_Voice_Telephone: 303-497-8154

Contact_Electronic_Mail_Address: codiac@ucar.edu

Contact_Electronic_Mail_Address: stott@ucar.edu

Distribution_Liability:

ConocoPhillips, Shell, and Statoil make no representation or warranty, express or implied, with regard to any of these data or metadata, as used alone or in combination with another data set, and expressly disclaim any representation or warranty. It is the responsibility of the data user to fully comprehend the metadata before use of the data. Each person accessing or using the data or metadata assumes all risks and all liabilities arising from or associated with such access or use. ConocoPhillips, Shell and Statoil shall have no responsibility or liability for any damages caused by any errors or omissions in the data or metadata or by improper or incorrect use of the data or metadata.