The Caspian Sea LME - oceanographic database



The Caspian Sea LME database contains 43 333 stations for the period of 1897 to 2011 (Figure 1).

Distribution of stations over the Caspian Sea area
Figure 1 - Distribution of stations over the Caspian Sea area (1897-2011).

Distribution of stations by years and months is given at Figure 2.

Distribution of stations by months and years in the Caspian Sea database
Figure 2 - Distribution of stations by months (A) and years (B) in the Caspian Sea database (1897-2011).

Tables and charts of station distribution in every month of each year for the considered period are in the Section.Inventory and archive data

Measurements were performed along 8 transects in the Caspian Sea (Figure 3-9, Table 1).

A number of stations located within the belt of 20 km on each side and used for the construction of climatic standards and anomalies is correlated with every transect.


Table 1 - Characteristics of the transects of the Caspian Sea
Area of the seaNumber of stations
No. of transectName of the transectÎDescription of the transect
1«Zuidwest Shalyga Island – Kulaly Island»Eastern part of the Northern Caspian Sea771
2«Novinsky Island – Kulaly Island»Boundary between the Eastern and Western parts of the Northern Caspian Sea1092
3«Belinsky Canal – to the South to the Chechen’ Island – Mangyshlak Peninsula Transect»Western part of the Northern Caspian Sea925
«Volga-Caspian Canal to the Chechen’ Island – Mangyshlak Peninsula Transect»Western part of the Northern Caspian Sea2832
4«Chechen’ Island – Mangyshlak Peninsula»Boundary between Northern and Central Caspian Sea1562
5«Divichi – Kenderly»Central Caspian Sea962
6«Zhiloi Island – Kuuli Cape»Boundary between the Central and Southern Caspian Sea2380
7«Kurinsky Kamen’ Island – Ogurchinsky Island»Southern Caspian Sea1159

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 1.
Figure 3 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 1.

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 2.
Figure 4 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 2.

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 3.
Figure 5 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 3.

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 3à.
Figure 6 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 3à.

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 4.
Figure 7 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 4.

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 5.and Transect No. 7
Figure 8 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 5. Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 7

Distribution of stations in the 40-km buffer zone and bottom relief along Transect No. 6.
Figure 9 - Distribution of stations in the 40-km buffer zone (A) and bottom relief (B) along Transect No. 6.

Maps of the vertical distributions of the climatic standarts and anomalies of temperature and salinity are given in section Time series of water temperature and salinity

The Caspian Sea LME database includes the following parameters (Table 2):

Table 2 - List of indices, included in the Caspian Sea database
ParameterUnits of measurementNumber of measurements
NameCodeNameCode
TemperatureTEMPDegree CelsiusÑ216 040
PressurePRESSDecibarDBAR41 371
ConductivityCONDSiemens/mSIEMENS/M42 814
SalinitySALUnits of practical scale of salinityPSS191 620
ChlorinityCLPer millePPT14 647
Absolute content of dissolved oxygenOXY class="al_l"Ml/l, Mg/lML/L, MG/L59 335
Relative content of dissolved oxygenOXY SATUR%PERCENT3 633
ðÍPH--49 455
AlkalinityALKMilligram-equivalent/lMEQ/L19 705
Hydrogen sulphideH2SMl/lML/L27
NitritesNO2Mg/l, Mkg/lMG/L, UG/L4 688
NitratesNO3Micromole/l, Mg/l, Mkg/lUMOL/L, MG/L, UG/L6 185
AmmoniumNH4Mg/lMG/L407
Total content of nitrogenTOTNMg/l, Mkg/lMG/L, UG/L46
PhosphatesPO4Micromole/l, Mg/l, Mkg/lUMOL/L, MG/L, UG/L30 718
Total content of phosphorusTOTPMg/l, Mkg/lMG/L, UG/L30
Content of dissolved organic carbonDOCMg/lMG/L19
Content of suspended organic carbonPOCMg/l, Mkg/lMG/L, UG/L15
SilicatesSIO4Micromole/lUMOL/L12 645
Chlorophyll àCHL AMg/l, Mkg/lMG/L, UG/L28
Total suspensionTSSMg/lMG/L20