Session of the wmo-ioc joint Technical Commission for Oceanography and Marine Meteorology (jcomm) agreed that it would be logical to transform the wmo wave Programme into the jcomm wind Wave and Storm Surge Programme


Basic Information on Storm Surges



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Basic Information on Storm Surges

9.1.1 Observational data

The results of the enquiry on basic data sources confirm that sea level measurements are extensive but regular current measurements are still rare and limited to the most advanced countries / institutions. Digital sea level records are available since 50’s, although a major change in technology is widely noted in 90s’. Nevertheless, still a few analog instruments in operational use are reported.


Those meteorological offices running storm surge models usually do not manage sea level data on their own. Data are shared among institutions, in most cases in real time. About half of the responses reflect the use of metadata, in some cases, well documented. Other agencies in surveyed countries did not respond, probably for not being responsible for the data management. Climatological extreme value analysis is done on these databases in most cases. Table 9.1 summrises the responses on basic information on storm surges.

Table 9.1: Basic Information on Storm Surges




stations

param

period

instr.

dig/analog.

metadata

climatology

country

2


SL

1986 -pres.

Stevens type A

D / A




yes

Mauritius

21

further info: http://www.puertos.es



SL

1992-pres.

15 acust,

7 pres


D

sensors,units and models

trends, extremes. main regimes

Spain

North Sea,

Baltic, Skagerrak coasts




SL

cur


sgl XIX-pres

1990’s


pres

buoy


D

yes

web based

further info: http://www.edios-project.de/ (*)


yes

Denmark




SL

NA

gauge MEDS

D







Canada

66

SL

1960-pres

float gauge w/stilling well (53)

12 acoustic

1 press.


D

location, datum vs ground elevation

maxima

Japan

25

SL

1970-pres

tide gauges

well type(22)

Radar Type(3)


D

Yes

web based



maximum SL return periods

Korea

170

SL

cur


s.1845 analog

s.1950digital



tide gauges

vector averaging current meters / ADCP



D

SL: other institutes

Currents: position. depth start, end date

interval type of instrument


extreme value analysis, return periods

Germany

7

SL

earliest 1921

3 new


staff gauge

D

none

river inflow, evap. precip., ice cover for model

Kazakhstan

18

SL

early 1900

well type

D

-

n

Sweden

N.Sea coasts

other services



SL

10 years or more

various




-




Netherlands

other services













-

risk areas mapping, extreme heights for sensitive areas

France




SL hourly 1954-87

Since 1988, 1 minute.

SL max. Events , 1906-1953








D

D

D



station name, location,type of instr., data period and availability (%)

maximum SL return periods

Hong Kong, China




since 1992




staff gauges

float and press.SL recorders



D

since late 90’s



loc, start date, programme, type of inst., accuracy

Frequency over threshold. maxima, 1961-2000

Latvia

1

CURR

s. dec 2002

ADCP

D

documents




Slovenia




SL

curr


up to early 19th century

field exp.



tide gauges, others

D/A




Positive & neg surge averaged maximum, different periods (details provided)

Russia




SL

since 1980

tide gauge Stevens

D/A

date and location

SL monthly means

Ecuador




SL

s. 1582

Analysed





surge peak

extent of damage (n؛ people)

inland inundation (km)


Analisis of maxima, return periods

India

44


SL

1 hourly

tide gauges

D

Documented

further info : http://www.pol.ac.uk/ntslf




U.K.






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