SUHU PERMUKAAN LAUT : Metode Pengukuran dan Aplikasi Datanya

MAHASISWA PROGRAM PASCASARJANA DEPARTEMEN ILMU DAN TEKNOLOGI KELUTAN

FAKULTAS PERIKANAN DAN ILMU KELAUTANINSTITUT PERTANIAN BOGOR

OLEH :

YOGA TRISWANTO C552130041KHAIRUL ANWAR C552130061NURMAWATI C552130101ZULFATHRI RANDHY C552130171TARLAN SUBARNO C552130141

Topik Bahasan

Suhu Permukaan Laut Pengukuran Suhu Permukaan Laut (SPL) Satelit NOAA (Sejarah, Misi, Sensor yang

Dimiliki) Aplikasi data SPL

Suhu Permukaan Laut (SPL)

Sea surface temperature (SST) is the water  temperature close to the ocean's surface.

Sea Surface Temperature (SST) is a measure of the energy due to the motion of molecules at the top layer of the ocean.

SST are governed by both atmospheric and oceanic processes.

SST affects the behavior of the Earth's atmosphere above.

Pengukuran Suhu Permukaan Laut

Insitu : CTD and Thermometer

Exitu : Melalui Satelit

Prinsip Kerja Instrumen Pengukur SPL1. Termometer 2. CTD

3. Satellitte

Sensor Temperatur (Thermistor, Termometer Platinum, atau keduanya) >> Data Digital >> Terekam dalam CTD >> Komputer atau transer secara kontinu

Thermometer dicelupkan ke badan air selama beberapa saat kemudian dibaca skala yang ditunjukkan pada thermometer secara manual

Menggunakan radiasi elektromagnetik pada gelombang infrared dan gelombang mikro

Satelit Untuk Perolehan Data SPLNOAA Jason-2Aqua ModisTopex/PosseidonERSENVISAT - Advanced Along-Track Scanning

Radiometer (AATSR)

Satelit NOAA

Satelit NOAA adalah satelit cuaca yang dioperasikan oleh National Ocean and Atmospheric Administration (NOAA) Amerika.

Misi utamanya adalah pemantauan cuaca

Misi NOAA

Satelit NOAAOrbit

Sun-Syncronous Polar  

Satelit NOAAKarakteristik Satelit NOAA 18

Operator (NOAA)

Launch Date 20 May 2005

Design Life Minimum 2 years

Total Mass 1457 kg

Orbit Properties Polar Sun-Syncronous Near Circular

Orbital Altitude Apogee: 866 km. Perigee: 845 km.

Orbital Inclination 98.74 Degrees

Orbital Period 102.12 min.

Instruments AVHRR/3 , HIRS/4 , AMSU-A1, AMSU-A2, MHS, SARSAT, SBUV/2, SEM/2, DCS/2

Satelit NOAAKarakteristik Sensor AVHRR

Satelit NOAAKarakteristik Sensor AVHRR/3

ChannelSpectral

Bandpass (micrometers)

Spatial Resolution at

nadir (km)

Signal to Noise (S/N) or Noise

Equivalent Delta Temperatures

(NEΔT)

1 (Visible) 0.580 - 0.68 1.1 9:1 at 0.5% Albedo

2 (Near IR) 0.725 - 1.00 1.1 9:1 at 0.5% Albedo

3A (Near IR) 1.580 - 1.64 1.1 20:1 at 0.5% Albedo

3B (IR-Window) 3.550 - 3.93 1.1 0.12 K at 300 K

4 (IR-Window) 10.300 - 11.3 1.1 0.12 K at 300 K

5 (IR-Window) 11.500 - 12.5 1.1 0.12 K at 300 K

Proses Pengolahan DataData Citra NOAA

Koreksi Citra

Algoritma SPL NOAA

Visualisasi Citra SPL

Klasifikasi

Peta SPL

What is Sea Surface Temperature Data used for?

Ocean temperature products are useful for Determining:

Location and variability of ocean currents and eddies

Areas of upwelling where nutrients and ocean productivity may be abundant

Atmospheric convection

Heat exchange between the ocean and atmosphere

An indicator of long-term climate change

References Deser, C., Alexander, M.A., Shang-Phing, X., and Philips, A.S.

2010. Sea Surface Temperature Variability : Patterns and Mechanisms. The Annual Reviews of Marine Science.

Emery, W.J., Catsro, S., Wick, G.A., Schluessel, P., and Donlon, C. Estimating Sea Surface Temperature From Infrared Satellite and In Situ Temperature Data. International Comprehensive Ocean-Atmosphere Data Set (ICOADS).

Soenarmo, S.H. 2003. Penginderaan Jarak Jauh dan Pengenalan Sistem Informasi Geografi. ITB

National Aeronautics and Space Administration__nasa.gov