Volume_flows#

Returns LNG volumes transferred to specified terminals or countries over a given time period. The volume_flows endpoint calculates the LNG volume transferred to a set of destination terminals/countries (and optionally from a set of origin terminals/countries) for a given time range. For historical time periods this is simply the observed number of transactions that occurred at the destinations. For future time periods, forecasted volumes are calculated. Forecasted volumes are calculated using the route_score_weighted_volume field from the transactions/forecast endpoint. The route_score_weighted_volume is the volume of a potential transaction multiplied by the likelihood of that transaction occurring. Forecast volumes are the sum of the route_score_weighted_volume for the destinations in the given time period. Note that this means partial transactions are included in the forecast volume. Uncertainties in the forecast volume are estimated using our uncertainty in the forecast transaction timestamp.

  • Historical data:

    • Shows actual observed transaction volumes.

  • Forecasted data:

    • Predicts future volumes based on:

      • Potential vessel arrivals and their cargo volumes

      • Probability of each arrival occurring

      • Arrival time uncertainties

Endpoint#

POST

https://leviaton.api.synmax.com/v1/volume_flows

Python Method Name#

from synmax.leviaton.v1 import LeviatonApiClient
leviaton_client = LeviatonApiClient(access_token=access_token)

# Method name:

 leviaton_api_client.volume_flows

Parameters#

Parameter

Type

Description

Example

destination_countries

string

A list of destination ISO 3166 country names to filter by.

[‘Spain’, ‘USA’]

destination_country_codes

string

A list of destination ISO 3166-1 alpha-2 country codes to filter by.

[‘ES’, ‘US’]

destination_polygons

array

A closed list of closed EPSG:4326 lon, lat coordinate pairs to filter by.

[[[-125.0, 24.5], [-125.0, 49.5], [-66.9, 49.5], [-66.9, 24.5], [-125.0, 24.5]], [[122.9, 24.0], [122.9, 45.5], [146.0, 45.5], [146.0, 24.0], [122.9, 24.0]]]

destination_regions

string

A list of destination regions to filter by.

[‘Asia’, ‘Europe’]

destination_terminal_ids

string

[‘terminal_7e1c3aad4’]

destination_terminals

string

A list of destination terminal names to filter by.

[‘Sabine Pass’, ‘Mugardos R’]

forecast_run_at

string

The UTC timestamp of the forecast run to filter by.

2025-07-27T22:43:41.371622+00:00

from_timestamp

string

The start UTC timestamp to filter by.

2025-07-27T22:43:41.371622+00:00

origin_countries

string

A list of origin ISO 3166 country names to filter by.

[‘Malaysia’, ‘Japan’]

origin_country_codes

string

A list of origin ISO 3166-1 alpha-2 country codes to filter by.

[‘MY’, ‘JP’]

origin_polygons

array

A closed list of closed EPSG:4326 lon, lat coordinate pairs to filter by.

[[[99.6, 1.0], [99.6, 7.5], [104.5, 7.5], [104.5, 1.0], [99.6, 1.0]], [[109.0, 1.0], [109.0, 7.5], [115.0, 7.5], [115.0, 1.0], [109.0, 1.0]]]

origin_regions

string

A list of origin regions to filter by.

[‘Asia’, ‘Europe’]

origin_terminal_ids

string

A list of origin terminal ids to filter by.

[‘terminal_75375a6e8’]

origin_terminals

string

A list of origin terminal names to filter by.

[‘Chita’, ‘Sodeshi’, ‘MLNG’]

to_timestamp

string

The end UTC timestamp to filter by.

2025-07-27T22:43:41.371622+00:00

transaction_type

string

The type of transaction to filter by.

loading

Response Details#

Parameter

Type

Description

Example

count

number

The mean count of the volume of the forecasted flow.

13.0

count_std

number

The standard deviation of the count of the volume of the forecasted flow.

0.0

timestamp

string

The UTC timestamp of the forecasted flow.

2025-07-27T22:43:41.371622+00:00

volume

number

The mean volume of the forecasted flow.

41.011715

volume_std

number

The standard deviation of the volume of the forecasted flow.

0.0

volume_unit

string

The unit of measurement for the forecasted volume.

bcf

Normal Output#

timestamp

volume

count

volume_unit

volume_std

count_std

2025-06-23T00:00:00

49.64853

14.0

gas_Bcf

0.0

0.0

2025-06-24T00:00:00

116.45326216225493

42.0

gas_Bcf

0.0

0.0

2025-06-25T00:00:00

103.48742604534633

40.0

gas_Bcf

0.0

0.0

2025-06-26T00:00:00

110.1680378

37.0

gas_Bcf

0.0

0.0

2025-06-27T00:00:00

145.9189474439428

51.0

gas_Bcf

0.0

0.0

2025-06-28T00:00:00

97.82390806359649

36.0

gas_Bcf

0.0

0.0

2025-06-29T00:00:00

92.28701518818899

29.0

gas_Bcf

0.0

0.0

2025-06-30T00:00:00

141.82400311666663

49.0

gas_Bcf

0.0

0.0

2025-07-01T00:00:00

118.57184902867965

40.0

gas_Bcf

0.0

0.0

2025-07-02T00:00:00

131.18712750485562

46.0

gas_Bcf

0.0

0.0