❓ A WA parliamentary question on notice regarding the Fremantle Tide Gauge data and historical sea level rise. The member questions the Minister on the rate of sea level rise, suggesting it has not accelerated in recent decades, but the Minister disputes some of the member's calculations and conclusions.
AnsweredQoN 738Legislative Council
QuestionView source ↗
(1) Is it a fact that the Fremantle Tide Gauge has been
operating since 1897? (2) Is it a fact that from 1897 to 1947 the mean sea level as
measured by the Fremantle Tide Gauge increased from 6,569 millimetres to 6,744
millimetres, an increase of 175 millimetres in the first 59 years of
operation of the Fremantle Tide Gauge? (3) Does the Minister agree that for the first 59 years
of the operation of the Fremantle Tide Gauge, the average annual increase in
mean sea level was approximately 3 millimetres? (4) Is it a fact that from 1956 to 2016 the mean sea level as
measured by the Fremantle Tide Gauge increased from 6,744 millimetres to 6,788
millimetres, an increase of 44 millimetres in the most recent 60 years of
operation of the Fremantle Tide Gauge? (5) Does the Minister agree that for the most recent 60 years
of the operation of the Fremantle Tide Gauge, the average annual increase in
mean sea level was less than 1 millimetre? (6) Does the Minister agree that in 119 years of operation of
the Fremantle Tide Gauge, the total sea level rise from 6,569mm in 1897 to 6,788mm
in 2016 is an increase of 219mm, less than 2 millimetres per year? (7) Does the Minister agree that there is nothing in the records
of the Fremantle Tide Gauge to suggest that the sea level rise has been greater or more rapid in the past six decades than in the previous six decades? (8) Does the Minister agree that the records of the Fremantle
Tide Gauge suggest that during past six decades the sea has risen less than in
the previous six decades?
operating since 1897? (2) Is it a fact that from 1897 to 1947 the mean sea level as
measured by the Fremantle Tide Gauge increased from 6,569 millimetres to 6,744
millimetres, an increase of 175 millimetres in the first 59 years of
operation of the Fremantle Tide Gauge? (3) Does the Minister agree that for the first 59 years
of the operation of the Fremantle Tide Gauge, the average annual increase in
mean sea level was approximately 3 millimetres? (4) Is it a fact that from 1956 to 2016 the mean sea level as
measured by the Fremantle Tide Gauge increased from 6,744 millimetres to 6,788
millimetres, an increase of 44 millimetres in the most recent 60 years of
operation of the Fremantle Tide Gauge? (5) Does the Minister agree that for the most recent 60 years
of the operation of the Fremantle Tide Gauge, the average annual increase in
mean sea level was less than 1 millimetre? (6) Does the Minister agree that in 119 years of operation of
the Fremantle Tide Gauge, the total sea level rise from 6,569mm in 1897 to 6,788mm
in 2016 is an increase of 219mm, less than 2 millimetres per year? (7) Does the Minister agree that there is nothing in the records
of the Fremantle Tide Gauge to suggest that the sea level rise has been greater or more rapid in the past six decades than in the previous six decades? (8) Does the Minister agree that the records of the Fremantle
Tide Gauge suggest that during past six decades the sea has risen less than in
the previous six decades?
AnswerView source ↗
Answered
10 April 2018
Responded by
Minister for Environment representing the Minister for Transport
Response time
9 days
(1) Yes
(2)-(5) No
(6) Yes
(7)-(8) No
(2)-(5) No
(6) Yes
(7)-(8) No
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