Qimera supports a large number of tide formats including QPS proprietary, tide data providers and industry standard tide formats.
This document details the tide data formats that are supported and provides examples of the formats and metadata where relevant. It also provides links to tide data providers.

On this page:

QPS Formats

QINSy Tide Data (*.qtd)

Binary tide files generated from QINSy Processing Manager.

Documentation on creating QTD files can be found in the Knowledge base here: Howto Tide - Tidal data

QINSy regular tide file

The date format is day/month/year

Eample QINSy regular tide file format

24/10/2009 10:10 1.24
24/10/2009 10:20 1.10
24/10/2009 10:30 0.98

Tide Data Providers and Formats

UK Tide Gauge Network, BODC Tide format

Data Source

Data from the UK tide gauge network is accessible from the British Oceanographic Data Centre.

Example

Example BODC Tide File format

Port:              P001
Site:              Newlyn
Latitude:          50.10300
Longitude:         -5.54283
Start Date:        01JAN2011-00.00.00
End Date:          31DEC2011-23.45.00
Contributor:       National Oceanography Centre, Liverpool
Datum information: The data refer to Admiralty Chart Datum (ACD)
Parameter code:    ASLVBG02 = Surface elevation (unspecified datum) of the water body by bubbler tide gauge
  Cycle    Date      Time    ASLVBG02   Residual  
 Number yyyy mm dd hh mi ssf         f          f 
     1) 2011/01/01 00:00:00     4.134     -0.022  
     2) 2011/01/01 00:15:00     4.304     -0.015  
     3) 2011/01/01 00:30:00     4.455     -0.004  
     4) 2011/01/01 00:45:00     4.561     -0.013  
     5) 2011/01/01 01:00:00     4.663     -0.001  
     6) 2011/01/01 01:15:00     4.732      0.003  
     7) 2011/01/01 01:30:00     4.770      0.002  
     8) 2011/01/01 01:45:00     4.799      0.015  
     9) 2011/01/01 02:00:00     4.781      0.004  
    10) 2011/01/01 02:15:00     4.742     -0.004  
    11) 2011/01/01 02:30:00     4.678     -0.016  
    12) 2011/01/01 02:45:00     4.598     -0.023  
    13) 2011/01/01 03:00:00     4.515     -0.014  
    14) 2011/01/01 03:15:00     4.395     -0.026  
    15) 2011/01/01 03:30:00     4.267     -0.032

NOAA CO-OPs

Data Source

Preliminary and verified tide data for the US is available from the CO-OPS Data Retrieval website. Metadata should be included.

Examples

Example of CO-OPs Preliminary (with metadata)

=================================================================================================================
               Station Metadata 
=================================================================================================================
    
   Station Id         :   8454000
   Station Name       :   Providence
   State              :   RI
   Latitude           :   41.8071
   Longitude          :   -71.4012
   Begin Date         :   20141006
   End Date           :   20141006
   Time Zone          :   GMT
   Datum              :   MLLW
   Unit               :   Meters 
=================================================================================================================
    Center for Operational Oceanographic Products and Services Data Disclaimer
=================================================================================================================
    These preliminary data have not been subjected to the National Ocean Services (NOS)
    Quality Control procedures, and do not necessarily meet the criteria and standards
    of official NOS data. They are released for limited public use with appropriate caution.
       
=================================================================================================================
    Name             --   Description
=================================================================================================================
    ID               --   Station ID
    D                --   is an assigned value of 1
    S                --   is the product data type
    Date Time        --   Date and time
    WL               --   Water level height
    Sigma            --   Standard deviation of 1 second samples used to compute the water level height
    O                --   Count of number of samples that fall outside a 3-sigma band about the mean
    F                --   A flag that when set to 1 indicates that the flat tolerance limit was exceeded
    R                --   A flag that when set to 1 indicates that the rate of change tolerance limit was exceeded
    L                --   A flag that when set to 1 indicates that either the maximum or minimum expected water
                          level height limit was exceeded
==================================================================================================================
ID      D S  Date       Time    WL      Sigma   O F R L
==================================================================================================================
8454000 1 WL 2014-10-06 00:00   1.368   0.004   0 0 0 0
8454000 1 WL 2014-10-06 00:06   1.326   0.007   0 0 0 0
8454000 1 WL 2014-10-06 00:12   1.281   0.007   0 0 0 0
8454000 1 WL 2014-10-06 00:18   1.223   0.008   0 0 0 0
8454000 1 WL 2014-10-06 00:24   1.173   0.006   0 0 0 0

Example of CO-OPs Verified (with metadata)

=========================================================================================================
               Station Metadata 
=========================================================================================================  
   Station Id         :   8454000
   Station Name       :   Providence
   State              :   RI
   Latitude           :   41.8071
   Longitude          :   -71.4012
   Begin Date         :   20140801
   End Date           :   20140801
   Time Zone          :   GMT
   Datum              :   MLLW
   Unit               :   Meters
=========================================================================================================
    Center for Operational Oceanographic Products and Services
=========================================================================================================
=========================================================================================================
    Name             --   Description
=========================================================================================================
    ID               --   Station ID
    Date Time        --   Date and time
    WL               --   Water level height
    Sigma            --   Standard deviation of 1 second samples used to compute the water level height
    I                --   A flag that indicates that the water level value has been inferred
    F                --   A flag that when set to 1 indicates that the flat tolerance limit was exceeded
    R                --   A flag that when set to 1 indicates that the rate of change tolerance limit was exceeded
    T                --   A flag that when set to 1 indicates that the temperature difference tolerance limit was exceeded
==========================================================================================================
ID      Date       Time    WL      Sigma   I F R T
==========================================================================================================
8454000 2014-08-01 00:00   0.726   0.001   0 0 0 0
8454000 2014-08-01 00:06   0.734   0.002   0 0 0 0
8454000 2014-08-01 00:12   0.746   0.002   0 0 0 0
8454000 2014-08-01 00:18   0.758   0.001   0 0 0 0
8454000 2014-08-01 00:24   0.765   0.001   0 0 0 0
8454000 2014-08-01 00:30   0.767   0.001   0 0 0 0
8454000 2014-08-01 00:36   0.769   0.001   0 0 0 0

Additional Formats

Caris Tides (*.tid)

The date format is year/month/day.

Example Caris tides format

--------
2000/11/01 00:00 0.522
2000/11/01 01:00 0.317
2000/11/01 02:00 0.395
2000/11/01 03:00 0.751
2000/11/01 04:00 1.296
2000/11/01 05:00 1.848
2000/11/01 06:00 2.339
2000/11/01 07:00 2.589

Swedish Maritime Authority (*.niv)

Example of Swedish Maritime Authority format

56432:hamnmatning 
20040819,1240, -0.06 
20040819,1250, -0.05 
20040819,1300, -0.03 
20040819,1310, -0.02 
20040819,1320, -0.02 
20040819,1330, -0.04 
20040819,1340, -0.04 
20040819,1350, -0.04 
20040819,1400, -0.05 
20040819,1410, -0.04

ARGOSS - Fixed Format

See www.tidal-info.com for more information.

COWLIS - Canadian Hydrographic Service

CHS COWLIS format

--------------------- LIBEX file dump ----------------------
----------------------- STN00905.OBS -----------------------
------------------ Time Zone:  GMT ( 0.0) ------------------
--------------------- Invariant Fields ---------------------
Name             Type Size    Units Value
------------------------------------------------------------
station_id       CHAR    5          00905
station_name     CHAR   16          St. John's, NFLD
data_product     CHAR    3          wlo
start_time       INTG    4  seconds 91/11/01 00:00:00
end_time         INTG    4  seconds 91/11/16 00:00:00
file_date        INTG    4  seconds 92/04/14 19:24:24
max_water_level  REAL    4   metres    1.640
min_water_level  REAL    4   metres    0.050
------------------------------------------------------------
---------------------- Variant Fields ----------------------
Name             Type Size    Units
------------------------------------------------------------
time             INTG    4  seconds
water_level      REAL    4   metres
std_dev          REAL    4   metres
------------------------------------------------------------
1980/01/01 00:00:00   0.0   0.030
2010/12/31 23:59:59   0.0   0.030
-------------------- End Of LIBEX File ---------------------

MSQ Dialmace Format

DDMMYYYYHHMM x.xxx

Where:

DD = Day (01-31)
MM = Month (01-12)
YYYY = Year
HH = Hour (00-23)
MM = Min (00-59)
x.xxx = Tide value in meters

Example:

240619930000 2.227
240619930010 2.257
240619930020 2.282
240619930030 2.302
240619930040 2.312
240619930050 2.317
240619930100 2.315
240619930110 2.300
240619930120 2.277
240619930130 2.242
240619930140 2.197
240619930150 2.150

PREDUCT - Dutch Navy (*.qtr)

HY95069_1_SSS
M2
43
/ / *
TMP/GLLWS
WGS84
15/11/95 01:52:31 52;25;11.100N 003;45;17.802E -0.217
15/11/95 01:52:32 52;25;11.170N 003;45;17.847E -0.217
15/11/95 01:52:33 52;25;11.272N 003;45;17.881E -0.217

RIKZ - Dutch Public Works

YYYYmmddHHMM eeeeee.ee nnnnnn.nn xx.xxx

Where:

YYYY = Year (01-31)
mm = Month (01-12)
dd = Day (01-31)
HH = Hour (00-23)
MM = Min (00-59)
eeeeee.ee = Easting (UTM 5E) in meters
nnnnnn.nn = Northing (UTM 5E) in meters
xx.xxx = Tide value in meters

HMS - Fixed Format (*.log)

The filename for the format indicated the date, and should be in the format "YYYMMDD.log"

HH:MM:SS xxxxx

Where:

HH = Hour (00-23)
MM = Min (00-59)
xxxxx = Tide value in m or cm

Example:

00:00:01 24.69 Bige -0.09 24.78 56
00:01:01 24.69 Bige -0.09 24.78 56
00:02:01 24.69 Bige -0.09 24.78 56
00:03:01 24.69 Bige -0.09 24.78 56

DMY HMS - Fixed Format

dd/mm/YY HH:MM xxxx

Where:

dd = Day (01-31)
mm = Month (01-12)
YY = Year (00-99)
HH = Hour (00-23)
MM = Min (00-59)
xxxx = Tide value in m or cm

Example:

15/09/00 08:30 -2.02
15/09/00 08:40 -2.01
15/09/00 08:50 -2.01
15/09/00 09:00 -1.93

YMD HMS - Fixed Format

YYYYMMDD HHMM xxxx

Where:

YYYY = Year (0000 - 9999)
MM = Month (01-12)
DD = Day (01-31)
HH = Hour (00-23)
MM = Min (00-59)
xxxx = Tide value in m or cm

Example:

20000808 0000 -12
20000808 0010 -27
20000808 0020 -43
20000808 0030 -58
20000808 0040 -73
20000808 0050 -88
20000808 0100 -101
20000808 0110 -115
20000808 0120 -127

Finnish Maritime Administration

YYYY DD mm HH xx

Where:

YYYY = Year
dd = Day (1-31)
mm = Month (1-12)
HH = Hour (0-23)
xx = Tide value in cm

SHOM

Example:

# Station : BREST
# Longitude : -4.49503994
# Latitude : 48.38290024
# Organisme fournisseur de données : SHOM / Marine nationale
# Fuseau horaire : UTC
# Unité : m
# Source 1 : Données brutes temps réel
# Source 2 : Données brutes 10 minutes temps différé
# Source 3 : Données validées temps différé
# Source 4 : Série horaire validée
Date;Valeur;Source
24/03/2015 00:00:25;1.055;1
24/03/2015 00:01:25;1.041;1
24/03/2015 00:02:25;1.030;1
24/03/2015 00:00:00;3.055;2
24/03/2015 00:10:00;4.041;2
24/03/2015 00:20:00;5.030;2