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Rover Environmental Monitoring Station (REMS) is a weather station on
Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terr ...
for
Curiosity rover ''Curiosity'' is a car-sized Mars rover designed to explore the Gale crater on Mars as part of NASA's Mars Science Laboratory (MSL) mission. ''Curiosity'' was launched from Cape Canaveral (CCAFS) on November 26, 2011, at 15:02:00 UTC and lan ...
contributed by
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
and
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...
.Spain Supplies Weather Station for Next Mars Rover - Marsdaily
/ref> REMS measures
humidity Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depe ...
,
pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and e ...
,
temperature Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have relied o ...
,
wind speed In meteorology, wind speed, or wind flow speed, is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature. Wind speed is now commonly measured with an anemometer. Wind speed ...
s, and
ultraviolet radiation Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30  PHz) to 400 nm (750  THz), shorter than that of visible light, but longer than X-rays. UV radiation i ...
on Mars. This Spanish project is led by the Spanish Astrobiology Center and includes the
Finnish Meteorological Institute The Finnish Meteorological Institute (FMI; fi, Ilmatieteen laitos; sv, Meteorologiska institutet) is the government agency responsible for gathering and reporting weather data and forecasts in Finland. It is a part of the Ministry of Transport ...
as a partner, contributing pressure and humidity sensors.


Overview

All sensors are located around three elements: two booms attached to the rover ''Remote Sensing Mast'' (RSM), the ''Ultraviolet Sensor'' (UVS) assembly located on the rover top deck, and the ''Instrument Control Unit'' (ICU) inside the rover. Goals include understanding Martian general circulation, microscale weather systems, local hydrological cycle, destructive potential of UV radiation, and subsurface habitability based on ground-atmosphere interaction. By August 18, 2012, REMS was turned on and its data was being returned to Earth.W. Harwood - Curiosity's Mars travel plans tentatively mapped - CBS
/ref> The temperature at that time: 37 degrees Fahrenheit (2.8 degrees Celsius). On August 21, 2012, one of two anemometers returned data with errors. After testing it was concluded that it was broken, probably hit by a rock on descent.Materia - ''El sensor de viento español de 'Curiosity' se estropea'' (Google Translate)
/ref> Martian winds can still be detected with the other sensor. Reports are posted on the Center for Astrobiology website and Twitter daily. Parts of REMS *Instrument Control Unit *
Ultraviolet Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nanometer, nm (with a corresponding frequency around 30 Hertz, PHz) to 400 nm (750 Hertz, THz), shorter than that of visible light, but longer than ...
Sensor *Boom 1 with: **Air Temperature Sensor **Wind Sensor **Ground Temperature Sensor *Boom 2 with: **Air Temperature Sensor **Wind Sensor **
Humidity Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depe ...
Sensor The pressure sensor can detect pressures from 1 to 1150 Pa (
Pascal Pascal, Pascal's or PASCAL may refer to: People and fictional characters * Pascal (given name), including a list of people with the name * Pascal (surname), including a list of people and fictional characters with the name ** Blaise Pascal, Fren ...
) (0.000145038 PSI to 0.1667934 PSI). For comparison, 1 atmosphere is 101,325 Pascals or 14.7 PSI. The air temperature, wind speed and direction sensor for InSight Mars lander (planned for 2018 launch) is based on REMS, also contributed by Spain.http://sites.nationalacademies.org/cs/groups/ssbsite/documents/webpage/ssb_086912.pdf


Results


See also

* Ministry of Education, Culture, and Sports (Spain) *
Temperature and Winds for InSight Temperature and Winds for InSight (TWINS) is a NASA meteorological suite of instruments on board the ''InSight'' lander that landed on Mars on 26 November 2018. TWINS provides continuous wind and air temperature measurements to help understand t ...
(TWINS, for
InSight Insight is the understanding of a specific cause and effect within a particular context. The term insight can have several related meanings: *a piece of information *the act or result of understanding the inner nature of things or of seeing intu ...
lander)


References


External links


CAB - REMS

NASA/JPL – REMSNASA Science Corner - REMSTemperaturePressure

Materia - ''El sensor de viento español de 'Curiosity' se estropea''Mars Weather – Twitter
{{Mars Mars Science Laboratory instruments Space program of Finland Meteorological instrumentation and equipment Space science experiments INTA spacecraft instruments