1. The document provides instructions for filling out a table to calculate net solar radiation values above the atmosphere. 2. It lists latitude, declination, daily solar duration, solar constant, planetary albedo, and other variables needed to estimate net incoming solar radiation and daily net solar energy for different locations and times. 3. The values provided are estimates based on research conducted in the field by the Environment, Research and Development Agency of Samosir Regency, North Sumatera Province.

1. I N S P I R A S I D A R I K U T I P A N I L M I A H K E R J A Y A N G D I T U A N G K A N K E D A L A M S U A T U K R E A S I D A N D I G U N A K A N
S E B A G A I R E F E R E N S I P R I B A D I D I D A L A M M E N D U K U N G K E G I A T A N K E R J A D I K A N T O R .
S E M O G A B E R M A N F A A T
O L E H :
H E L M U T T O D O T U A S I M A M O R A
TABEL PENGHITUNG
NILAI BERSIH (NILAI NET)
RADIASI MATAHARI TERPANCAR MASUK DI ATAS ATMOSFER
BADAN LINGKUNGAN HIDUP, PENELITIAN DAN PENGEMBANGAN
KABUPATEN SAMOSIR PROVINSI SUMATERA UTARA

2. Petunjuk :
1. Klik tabel berikut.
2. Klik dan ketik angka/nilai dari hasil treatment penelitian di lapangan pada kolom B : (6) ; (7) ; (8)
Lokasi Latitude yang diamati (Latitude of the place under consideration) 2,00 Φ
Deklinasi sinar matahari dari beragam besaran sudut dari 0 o equinoksis hingga pada solstis 23 1/2
o (Declination of the sun which varies from 0 o at the equinoxes to 23 1/2 o at the solstices
2,00 δ
Lama durasi sinar matahari setiap hari (The daily net solar energy) 11,00
Jam
(Hours)
Ketetapan sinar matahari (Solar constant) 1.380,00 W.m-2
Albedo planetari atau reflektansi bumi (Planetary albedo or reflectance of the Earth). 0,40 α
Nilai radiasi matahari terpancar masuk di atas atmosfer (refleksi minus energi pancaran masuk)
(Net incoming radiation above the atmosphere (incoming minus reflected energy))
828,00 WM-2
Daya pancar masuk sinar matahari pada saat sore hari, di equinoks, atau di appropriasi tropis
(antara cancer dan capricon) di solstis (The net coming solar power at noon, on the equator, at the
equinoxes, or at the appropriate tropic (either Cancer or Capricon) at the solstice.
828,00 WM-2
Energi matahari bersih yang berada di luar atmosfer garis katulistiwa di equinoks (The daily net
solar energy at the outer limit of the atmosphere at the equator at the equinox) 21,86 MJM-2
Nilai di atas merupakan prakiraan/estimasi.
TABEL PENGHITUNG
NILAI BERSIH (NILAI NET)
RADIASI MATAHARI TERPANCAR MASUK DI ATAS ATMOSFER

3. Thank You
Dedicated to :
1. My loving wife , Hutapea Olga Y.V, dr;
2. My loving daughter :
a. Simamora Michelle Renata Robertina;
b. Simamora Helga Martha Davina;
Also :
1. Environment, Research and Development Agency of Samosir Regency Government
of North Sumatera Province;
2. People of Samosir Regency
3. All of You
Alumni :
PSMIL – Universitas Padjadjaran
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