MSL YEAR 3 FALL WEATHER DATA (LS 0 TO 90)

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This page updated 6/24/2017.

On Table 1 column subjects and color codings are as follows:

Column A (Sol). The Martian day is about 39 minutes longer than the terrestrial day.

Column B is solar longitude (Ls). MSL is in the Southern Hemisphere on Mars. The landing was at Ls 150 in winter. Ls 180 begins the spring there.  Ls 270 starts summer, Ls 0 starts the fall. Ls 90 starts the winter.

Column C shows the pressure reported by the REMS Team.

Column D shows the date on Earth.

Column E shows the maximum air temperature. With respect to the freezing point, from 0° C at 1 atm pressure it will increase up to 0.01° C at 0.006 atm (which is about the average pressure on Mars as given by NASA). This is the triple point of water. At pressures below this, water will never be liquid. It will change directly between solid and gas phase (sublimation). The temperature for this phase change, the sublimation point, will decrease as the pressure is further decreased

Column F shows minimum air temperature.

Column G shows the air temperature range for each sol. On Earth temperatures can vary by 40 °C in deserts. In column G where the range is 59 °C or less yellow background coloring points that out. The National Park Service claims the world record in a diurnal temperature variation is 102 °F (57 °C) (from 46 °F (8 °C) to −56 °F (−49 °C)) in Browning, Montana (elevation 4,377 feet/1,334 meters) on January 23 to 24, 1916. There were 2 days in Montana where the temperature changed by 57 °C.

Column H shows temperature range divided by 40. This allows us to compare terrestrial deserts with Gale Crater, Mars. How much cooling occurs at night is related to the density of the atmosphere. Here we see the ratio of cooling on a Mars sol to the typical 40 °C cooling figure for Earth's deserts shown with a green background when that ratio is under 1.5. For MSL Year 1 when we altered the devisor from 40 °C  to 57 °C then 88 of the ratios were altered to 1 or less than 1, meaning that Martian air pressure is indeed likely much higher than NASA claims.

Column I shows maximum ground temperature. As with terrestrial deserts, the ground on Mars heats more during the day than the air does, and it cools more at night than the air does. In Column K when the maximum ground temperature is given by REMS is above 0°C it is shown with a red background.

Column J shows the minimum ground temperature. When it is -90 °C or colder the background is in purple. The ground temperatures are not very precise. The requirement was to measure ground brightness temperature over the range from 150 to 300 K with a resolution of 2 K and an accuracy of 10 K

Column K. Drop in ground temperature from day to night.

Column L shows the increase in temperature from the mast 1.5 meters above the ground down to the ground during the daylight hours. In column N anytime there is an increase in temperature of 11 °C or more this in indicated with a dark blue background.

 

Column M shows the decrease in temperature from the ground to the air at nights. If the data were valid we would expect similar heating or cooling to occur over the set distance from ground to boom. A quick survey of the data immediately shows that this was not found. In column L we see a variation in heating between 0 °C and at least 15 °C with a 54 °C anomaly on Sol 1,070. For nighttime cooling any variation from 11°C to 19°C is shown with a medium blue background. More than that is shown with a dark blue background.

Column N shows the pressure for the same Ls in MSL Year 1.

Column O shows the absolute value of the change in pressure in Pascals from the same Ls in the previous year (Column [M] - [C]).

Column P shows the original pressure for the same Ls in MSL Year 1 before JPL revised their data.

Column Q shows the Ls during Year 1.

Column R shows the UV for the sol in Year 2.

Column S shows the UV for the sol in Year 1. All sols in MSL Year 1 and Year 2 have opacity listed as “sunny” which seems dubious.

Column T shows comments, if any.

 

 

A

B

C

D

E

F

G

H

I

J

 K

L M N O P Q R S T

SOL

~LS

PRESSURE

Pa   

EARTH

DATE

MAX

AIR

TEMP

°C   

MIN

AIR

TEMP

°C

AIR

TEMP

RANGE

°C

AIR

TEMP

RANGE

°C/40

MAX

GROUND

TEMP °C

MIN

GROUND

TEMP °C

∆ GROUND

TEMP

DAY

TO

NIGHT

DAYTIME

CHANGE

IN TEMP 

°C AIR

TO GROUND

NIGHTTIME

CHANGE

IN TEMP

°C AIR TO

GROUND

PRESSURE

AT SAME

LS IN MSL

YEAR 2

∆ PRESSURE

YEAR 3 TO

YEAR 2 SAME

LS 

~LS

year 2

PRESSURE    

YEAR 1 

BEFORE

REVISION 

UV

YR

3 

UV

YR

2

MSL YEAR 2 SOL FOR THIS LS/

COMMENTS

           

YELLOW IF

<60 °C

GREEN IF

<1.5

RED IF

> 0 °C

PURPLE =

 >-90°C

OR COLDER

Yellow numbers

= -80 to -89 °C,

red background =

-90°C or colder 

drop

BLUE =

>10°C

PURPLE

= >10°C

  YELLOW = 
> 7 Pa)
         
1687 359 838 5/5/2017 -11  -75  64 1.6 6  -82 -88  17 -7 853 -15 0  819 H  M. Year 1 was H.   (1019) Last day of summer  (included for reference)
1688 0 840 5/6/2017 -13 -76 63 1.575 5 -95 -100   18 -19 832 +8 0    No revision but 832 seemed too low. H  H. Year 1 was H. (1020) First day of fall.
1689 0 840 5/7/2017 -10 -75 65 1.625  5 -89    -94--9 15 -14 850 -10 (originally -8) 1  848 H L changed to H. Year 1 was H.  (1021)
1690 1 840 5/8/2017 -14 -76 62 1.55   2 -81 -83 16 -5 852 -12 1  N/A H H. Year 1 was H.  (1022)
1691 1 N/A 5/9/2017 N/A N/A N/A N/A N/A N/A N/A N/A N/A 827 N/A 2  N/A  N/A  H. Year 1 was H.  (1023)
1692 2  820  5/10/2017  -11 -62 51 1.275  5  -64 -69 16  -2 851

 -31

(apparent error year 2)

2   N/A H  H. Year 1 was H.   (1024)
1693 2  840  5/11/2017  -12 -76  64 1.6  6 -82 -88 18 -6 851  -11 3 N/A  H  H. Year 1 was H.   (1025)
1694 3 840  5/12/2017  -12  -76  64 1.6  5  -118 -123 17 -42 868 -28 (possible error year 2) 3 N/A   H

N/A (was L). Year 1 was H.   

(1026)
1695 3  840  5/13/2017  -13 -77 64  1.6  5  -97 -102 18  -20 N/A  N/A  4 N/A  H  N/A  and N/A (1027) 
1696 4 841 5/14/2017  -13  -75 62  1.55   5   -85 -90 18  -10 853 -12 4  N/A  H   H. Year 1 was N/A. (1028)  
1697 4 841 5/15/2017 -15 -77  62  1.55  3 -113 -118 18  -36 856 -15 5 N/A   H   H. Year 1 was N/A.  (1029)  
1698 5 842 5/16/2017 -12 -77  62  1.55  4 -104 -107 16 -27 855 -13 5  N/A  H H. Year 1 was N/A.   (1030) 
1699 5 843 5/17/2017 -12
-77  62  1.55  4 -112 -116 16  -27  856  -13 6 N/A  H H. Year 1 was N/A.   (1031) 
1700 6 842 5/18/2017 -14 -76 62  1.55   6 -106 -112 20 -30 854 -12 6  N/A  H  H. Year 1 was N/A.    (1032) 
1701 6 841 5/19/2017 -12 -76 64 1.6  5   -85   -90  17 -9  856  -15 7 N/A  H  H. Year 1 was N/A.    (1033) 
1702 7 842 5/20/2017 -12 -75 63 1.575  4  -87 -91 16 -12 859 -17 7 N/A  H  H. Year 1 was N/A.    (1034) 
1703 7 830 5/21/2017 -12 -68 56 1.4 8 -78 -86 20  -10  857 -27  8  N/A  H H. Year 1 was H. (1035)
1704 8 844 5/22/2017 -14 -77 63  1.575   7 -86 -93 21 -9  860 -16 8  N/A   H H. Year 1 was H.  (1036)
1705 8 850 5/23/2017 -20 -76 56  1.4  6 -86  -92 26 -10  856 -6 9 N/A   H H. Year 1 was H.  (1037)
1706 9 845 5/24/2017 -17 -77  60 1.5  4  -106  -110 21  -29  858 -13 9 N/A   H H. Year 1 was H.  (1038)
1707 9 860 5/26/2017 -22 -77   55 1.375 3  -105 -108 25

-28

858  +2 9  N/A  H  H. Year 1 was H.  (1038 again) For the last Martian month the Ls from MSL Year 2 has differed from the Ls in Year 3 by one half  degree. Therefore instead of using Ls 10 data from Sol 1039 of Year 2 here, the data from Sol 1038 is repeated.  frokm f
1708 10 846 5/27/2017 -13 -76  63  1.575   5 -87 -92  18 -11 857 -11 10  N/A   H  H. Year 1 was H.   (1039) 
1709 10 847 5/28/2017 -14 -76   62 1.55  6 -128 -134 20  -52 858  -11  10  N/A  H  H. Year 1 was H.  (1040)  Another insane record ground temp low. Note that for Sols 1708, 1709 anf 1710, the low air temps were all -76°C, but the ground temp lows varied from -87°C to -128°C (-198.4° F) and then went back up to -86° (-122.8 F). We are asked to believe that while air temps were consistent, on Sol 1709 in 1.5 meters the temperature fell by 52°C which is 93.6 °F. See Figure 2 below.
1710 11 848 5/29/2017  -12 -76   64 1.6 5  -86 -91 17 -10  859 -11  11 N/A  H  H. Year 1 was H.  (1041)  
1711 11 848 5/30/2017 -13 -75  62 1.55  5  -91 -96 18 -16 859  -11  11 N/A  H  M. Year 1 was H.  (1042)   
1712 12 849 5/31/2017 -11 -77 66 1.65  5   -108 -113 16 -31 860

-11

 

12 N/A  H  M. Year 1 was H.  (1043)  
1713 12 850 6/1/2017 -10 -75  65 1.625   6 -101 -107 16  -26 860  -10 12  N/A  H   M. Year 1 was H.   (1044) 
1714 13 849 6/2/2017 -13  -77 64 1.6 6  -124 -130 19 -47 861 -12 13 N/A H   H. Year 1 was H.  (1045) 
1715 13 851 6/3/2017 -10  -77 67 1.675   5  -119 -124 15 -42  862 -11  13 N/A  H   H. Year 1 was H.  (1046) 
1716 14 850 6/4/2017 -10 -76 66  1.65   6  -87 -93 16  -11 863 -13 14 N/A  H   H. Year 1 was H.  (1047) 
1717 14 851 6/5/2017 -12 -76 64 1.6 2 -94 -96 14 -18 864 -13  14  N/A   H H. Year 1 was H.  (1048)
1718 15 852 6/6/2017 -16 -77 61 1.525  5 -111 -116 21 -34 864  -12 15  N/A  H H. Year 1 was H.   (1049)
1719 15 853 6/7/2017 -19 -77 58 1.45 3 -113 -116  22 -36 863  -10  15   N/A  H H. Year 1 was H.   (1050)
1720 16 853 6/8/2017 -17 -76 59 1.475  4 -92 -96  21 -16 864 -11 16 N/A  H H. Year 1 was H. (1051)
1721 16 852 6/9/2017 -16 -76 60 1.5  4 -136 -140 20 -60 865 -13 16  N/A  H M. Year 1 was H.

(1052)

New record ground temp. low. -136 C = -212.8 F. See Figure 3.

1722 17 854 6/10/2017 -13 -77  64 1.6 2 -122 -124  15  -45 865 -11  17 N/A  H H. Year 1 was H. (1053)
1723 17 854 6/11/2017 -16 -76 60 1.5 2 -94 -96 18 -18 867 -13 17  N/A   H H. Year 1 was H.  (1054)
1724 18 856 6/12/2017 -21 -77 56 1.4 5 -85 -90 26 -8  868 -12 17  N/A  H H. Year 1 was H. (1055)
1725 18 857 6/13/2017 -18 -79 61 1.525  5 -105 -110 23 -26  868 -11 18 N/A  H H. Year 1 was H.  (1056)
1726 19 855 6/14/2017  -17 -76  59 1.475  5  -92 -97 22 -16 867  -12  18  N/A  H  H. Year 1 was H.   (1057) 
1727 19 855 6/15/2017 -13 -75   62 1.55  2  -92 

-94

15 

-17 868  -13 19  N/A  H   H. Year 1 was H.  (1058) 
1728 20 855 6/16/2017 -16 -76 60 1.5  5  -93 -98 21 -17  870 -15 19 N/A  H   H. Year 1 was H.  (1059) 
1729 20 858 6/17/2017 -19 -76  57 1.425  4  -92  -96 23 -16 870 -12  20 N/A  H   H. Year 1 was H.  (1060) 
1730 21 858 6/18/2017 -20 -77 57  1.425  3 -93 -96  23  -16  871 -13  20  N/A  H. Year 1 was H.   (1061) 
1731 21 857 6/19/2017 -24 -78 54 1.35 6 -95 -101 30 -17  871 -14 21 N/A  H. Year 1 was H.   (1062) 
1732 22 858 6/20/2017 -24 -78  54  1.35 7 -92 -99 31 14 871  -13  21  N/A  H H. Year 1 was H.    (1063) 
1733 22 859 6/21/2017 -21 -77 56 1.4  2 -122 -124  23   -45  871  -12 22 N/A  H H. Year 1 was H.    (1064) 

SOL

~LS

PRESSURE Pa  

EARTH DATE 

MAX

AIR

TEMP

°C 

 

MIN

AIR

TEMP

°C

 

AIR

TEMP

RANGE

°C

 

AIR

TEMP

RANGE

°C/40

 

MAX

GROUND

TEMP °C

 

MIN

GROUND

TEMP °C

 

∆ GROUND

TEMP

DAY

TO

NIGHT

 

DAYTIME

CHANGE

IN TEMP 

°C AIR

TO GROUND

 

NIGHTTIME

CHANGE

IN TEMP

°C AIR TO

GROUND

PRESSURE AT SAME   LS IN MSL  YEAR 2  ∆ PRESSURE YEAR  2 TO YEAR 3 SAME LS  ~LS Year 2 

PRESSURE YEAR 2 BEFORE REVISION 

 
UV YR 3 

UV YR   2(1011)

 

 

Figure 1 above: Temperatures reported (especially low ground temperatures) continue to be inconsistent and may suggest that the REMS Team is rebelling against publishing weather data that adheres to a NASA script.

 

Figure 2 - New insane low ground temperature for MSL Sol 1,709.

 

Figure 3 - New record low of -136 degrees F on MSL Sol 1721.