PMID- 17778952
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100702
LR  - 20100608
IS  - 0036-8075 (Print)
IS  - 0036-8075 (Linking)
VI  - 234
IP  - 4780
DP  - 1986 Nov 28
TI  - Long-term downward trend in total solar irradiance.
PG  - 1114-7
AB  - The first 5 years (from 1980 to 1985) of total solar irradiance observations by 
      the first Active Cavity Radiometer Irradiance Monitor (ACRIM I) experiment on 
      board the Solar Maximum Mission spacecraft show a clearly defined downward trend 
      of -0.019% per year. The existence of this trend has been confirmed by the 
      internal self-calibrations of ACRIM I, by independent measurements from sounding 
      rockets and balloons, and by observations from the Nimbus-7 spacecraft. The trend 
      appears to be due to unpredicted variations of solar luminosity on time scales of 
      years, and it may be related to solar cycle magnetic activity.
FAU - Willson, R C
AU  - Willson RC
FAU - Hudson, H S
AU  - Hudson HS
FAU - Frohlich, C
AU  - Frohlich C
FAU - Brusa, R W
AU  - Brusa RW
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Science
JT  - Science (New York, N.Y.)
JID - 0404511
EDAT- 1986/11/28 00:00
MHDA- 1986/11/28 00:01
CRDT- 1986/11/28 00:00
PHST- 1986/11/28 00:00 [pubmed]
PHST- 1986/11/28 00:01 [medline]
PHST- 1986/11/28 00:00 [entrez]
AID - 234/4780/1114 [pii]
AID - 10.1126/science.234.4780.1114 [doi]
PST - ppublish
SO  - Science. 1986 Nov 28;234(4780):1114-7. doi: 10.1126/science.234.4780.1114.