| 1 | #################################################### |
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| 2 | ### A Python Class for the Mars Climate Database ### |
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| 3 | ### ---------------------------------------------### |
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| 4 | ### Aymeric SPIGA 17-21/04/2012 ### |
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| 5 | ### ---------------------------------------------### |
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| 6 | ### (see mcdtest.py for examples of use) ### |
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| 7 | #################################################### |
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| 8 | |
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| 9 | import numpy as np |
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| 10 | import fmcd |
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| 11 | import matplotlib.pyplot as mpl |
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| 12 | import myplot |
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| 13 | |
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| 14 | class mcd: |
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| 15 | |
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| 16 | def __repr__(self): |
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| 17 | # print out a help string when help is invoked on the object |
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| 18 | whatprint = 'MCD object. \"help(mcd)\" for more information\n' |
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| 19 | return whatprint |
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| 20 | |
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| 21 | ######################## |
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| 22 | ### Default settings ### |
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| 23 | ######################## |
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| 24 | |
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| 25 | def __init__(self): |
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| 26 | # default settings |
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| 27 | ## 0. general stuff |
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| 28 | self.name = "MCD v4.3 output" |
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| 29 | self.dset = '/home/aymeric/Science/MCD_v4.3/data/' |
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| 30 | ## 1. spatio-temporal coordinates |
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| 31 | self.lat = 0. |
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| 32 | self.lon = 0. |
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| 33 | self.loct = 0. |
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| 34 | self.xdate = 0. # see datekey |
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| 35 | self.xz = 10. # see zkey |
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| 36 | ## 1bis. related settings |
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| 37 | self.zkey = 3 # specify that xz is the altitude above surface (m) |
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| 38 | self.datekey = 1 # 0 = "Earth time": xdate is given in Julian days (localtime must be set to zero) |
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| 39 | # 1 = "Mars date": xdate is the value of Ls |
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| 40 | ## 2. climatological options |
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| 41 | self.dust = 2 #our best guess MY24 scenario, with solar average conditions |
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| 42 | self.hrkey = 1 #set high resolution mode on (hrkey=0 to set high resolution off) |
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| 43 | ## 3. additional settings for advanced use |
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| 44 | self.extvarkey = 1 #extra output variables (1: yes, 0: no) |
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| 45 | self.perturkey = 0 #integer perturkey ! perturbation type (0: none) |
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| 46 | self.seedin = 1 #random number generator seed (unused if perturkey=0) |
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| 47 | self.gwlength = 0. #gravity Wave wavelength (unused if perturkey=0) |
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| 48 | ## outputs. just to define attributes. |
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| 49 | ## --> in update |
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| 50 | self.pres = None ; self.dens = None ; self.temp = None ; self.zonwind = None ; self.merwind = None ; self.meanvar = None ; self.extvar = None |
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| 51 | self.seedout = None ; self.ierr = None |
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| 52 | ## --> in prepare |
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| 53 | self.xcoord = None ; self.ycoord = None |
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| 54 | self.prestab = None ; self.denstab = None ; self.temptab = None |
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| 55 | self.zonwindtab = None ; self.merwindtab = None ; self.meanvartab = None ; self.extvartab = None |
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| 56 | |
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| 57 | def viking1(self): self.name = "Viking 1 site. MCD v4.3 output" ; self.lat = 22.48 ; self.lon = -49.97 ; self.xdate = 97. |
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| 58 | def viking2(self): self.name = "Viking 2 site. MCD v4.3 output" ; self.lat = 47.97 ; self.lon = -225.74 ; self.xdate = 117.6 |
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| 59 | |
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| 60 | def getextvarlab(self,num): |
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| 61 | whichfield = { \ |
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| 62 | 91: "Pressure (Pa)", \ |
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| 63 | 92: "Density (kg/m3)", \ |
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| 64 | 93: "Temperature (K)", \ |
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| 65 | 94: "W-E wind component (m/s)", \ |
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| 66 | 95: "S-N wind component (m/s)", \ |
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| 67 | 1: "Radial distance from planet center (m)",\ |
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| 68 | 2: "Altitude above areoid (Mars geoid) (m)",\ |
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| 69 | 3: "Altitude above local surface (m)",\ |
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| 70 | 4: "orographic height (m) (surface altitude above areoid)",\ |
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| 71 | 5: "Ls, solar longitude of Mars (deg)",\ |
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| 72 | 6: "LST local true solar time (hrs)",\ |
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| 73 | 7: "Universal solar time (LST at lon=0) (hrs)",\ |
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| 74 | 8: "Air heat capacity Cp (J kg-1 K-1)",\ |
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| 75 | 9: "gamma=Cp/Cv Ratio of specific heats",\ |
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| 76 | 10: "density RMS day to day variations (kg/m^3)",\ |
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| 77 | 11: "[not defined]",\ |
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| 78 | 12: "[not defined]",\ |
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| 79 | 13: "scale height H(p) (m)",\ |
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| 80 | 14: "GCM orography (m)",\ |
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| 81 | 15: "surface temperature (K)",\ |
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| 82 | 16: "daily maximum mean surface temperature (K)",\ |
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| 83 | 17: "daily minimum mean surface temperature (K)",\ |
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| 84 | 18: "surf. temperature RMS day to day variations (K)",\ |
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| 85 | 19: "surface pressure (high resolution if hireskey=1)",\ |
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| 86 | 20: "GCM surface pressure (Pa)",\ |
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| 87 | 21: "atmospheric pressure RMS day to day variations (Pa)",\ |
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| 88 | 22: "surface pressure RMS day to day variations (Pa)",\ |
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| 89 | 23: "temperature RMS day to day variations (K)",\ |
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| 90 | 24: "zonal wind RMS day to day variations (m/s)",\ |
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| 91 | 25: "meridional wind RMS day to day variations (m/s)",\ |
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| 92 | 26: "vertical wind component (m/s) >0 when downwards!",\ |
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| 93 | 27: "vertical wind RMS day to day variations (m/s)",\ |
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| 94 | 28: "small scale perturbation (gravity wave) (kg/m^3)",\ |
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| 95 | 29: "q2: turbulent kinetic energy (m2/s2)",\ |
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| 96 | 30: "[not defined]",\ |
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| 97 | 31: "thermal IR flux to surface (W/m2)",\ |
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| 98 | 32: "solar flux to surface (W/m2)",\ |
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| 99 | 33: "thermal IR flux to space (W/m2)",\ |
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| 100 | 34: "solar flux reflected to space (W/m2)",\ |
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| 101 | 35: "surface CO2 ice layer (kg/m2)",\ |
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| 102 | 36: "DOD: Dust column visible optical depth",\ |
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| 103 | 37: "Dust mass mixing ratio (kg/kg)",\ |
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| 104 | 38: "DOD RMS day to day variations",\ |
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| 105 | 39: "DOD total standard deviation over season",\ |
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| 106 | 40: "Water vapor column (kg/m2)",\ |
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| 107 | 41: "Water vapor vol. mixing ratio (mol/mol)",\ |
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| 108 | 42: "Water ice column (kg/m2)",\ |
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| 109 | 43: "Water ice mixing ratio (mol/mol)",\ |
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| 110 | 44: "O3 ozone vol. mixing ratio (mol/mol)",\ |
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| 111 | 45: "[CO2] vol. mixing ratio (mol/mol)",\ |
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| 112 | 46: "[O] vol. mixing ratio (mol/mol)",\ |
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| 113 | 47: "[N2] vol. mixing ratio (mol/mol)",\ |
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| 114 | 48: "[CO] vol. mixing ratio (mol/mol)",\ |
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| 115 | 49: "R: Molecular gas constant (J K-1 kg-1)",\ |
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| 116 | 50: "Air viscosity estimation (N s m-2)" |
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| 117 | } |
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| 118 | if num not in whichfield: myplot.errormess("Incorrect subscript in extvar.") |
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| 119 | return whichfield[num] |
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| 120 | |
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| 121 | def convertlab(self,num): |
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| 122 | ## a conversion from text inquiries to extvar numbers. to be completed. |
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| 123 | if num == "p": num = 91 |
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| 124 | elif num == "rho": num = 92 |
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| 125 | elif num == "t": num = 93 |
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| 126 | elif num == "u": num = 94 |
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| 127 | elif num == "v": num = 95 |
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| 128 | elif num == "tsurf": num = 15 |
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| 129 | elif num == "topo": num = 4 |
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| 130 | elif num == "h": num = 13 |
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| 131 | elif num == "ps": num = 19 |
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| 132 | elif num == "tau": num = 36 |
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| 133 | elif num == "mtot": num = 40 |
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| 134 | elif num == "icetot": num = 42 |
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| 135 | elif num == "ps_ddv": num = 22 |
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| 136 | elif num == "h2ovap": num = 41 |
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| 137 | elif num == "h2oice": num = 43 |
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| 138 | elif num == "cp": num = 8 |
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| 139 | elif num == "rho_ddv": num = 10 |
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| 140 | elif num == "tsurfmx": num = 16 |
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| 141 | elif num == "tsurfmn": num = 17 |
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| 142 | elif num == "lwdown": num = 31 |
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| 143 | elif num == "swdown": num = 32 |
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| 144 | elif num == "lwup": num = 33 |
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| 145 | elif num == "swup": num = 34 |
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| 146 | elif num == "o3": num = 44 |
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| 147 | elif num == "o": num = 46 |
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| 148 | elif num == "co": num = 48 |
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| 149 | elif num == "visc": num = 50 |
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| 150 | elif num == "co2ice": num = 35 |
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| 151 | elif not isinstance(num, np.int): myplot.errormess("field reference not found.") |
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| 152 | return num |
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| 153 | |
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| 154 | ################### |
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| 155 | ### One request ### |
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| 156 | ################### |
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| 157 | |
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| 158 | def update(self): |
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| 159 | # retrieve fields from MCD (call_mcd). more info in fmcd.call_mcd.__doc__ |
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| 160 | (self.pres, self.dens, self.temp, self.zonwind, self.merwind, \ |
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| 161 | self.meanvar, self.extvar, self.seedout, self.ierr) \ |
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| 162 | = \ |
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| 163 | fmcd.call_mcd(self.zkey,self.xz,self.lon,self.lat,self.hrkey, \ |
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| 164 | self.datekey,self.xdate,self.loct,self.dset,self.dust, \ |
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| 165 | self.perturkey,self.seedin,self.gwlength,self.extvarkey ) |
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| 166 | ## we use the end of extvar (unused) to store meanvar. this is convenient for getextvar(lab) |
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| 167 | self.extvar[90] = self.pres ; self.extvar[91] = self.dens |
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| 168 | self.extvar[92] = self.temp ; self.extvar[93] = self.zonwind ; self.extvar[94] = self.merwind |
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| 169 | |
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| 170 | def printset(self): |
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| 171 | # print main settings |
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| 172 | print "zkey",self.zkey,"xz",self.xz,"lon",self.lon,"lat",self.lat,"hrkey",self.hrkey, \ |
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| 173 | "xdate",self.xdate,"loct",self.loct,"dust",self.dust |
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| 174 | |
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| 175 | def getnameset(self): |
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| 176 | # set a name referring to settings [convenient for databases] |
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| 177 | name = str(self.zkey)+str(self.xz)+str(self.lon)+str(self.lat)+str(self.hrkey)+str(self.datekey)+str(self.xdate)+str(self.loct)+str(self.dust) |
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| 178 | return name |
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| 179 | |
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| 180 | def printcoord(self): |
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| 181 | # print requested space-time coordinates |
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| 182 | print "LAT",self.lat,"LON",self.lon,"LOCT",self.loct,"XDATE",self.xdate |
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| 183 | |
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| 184 | def printmeanvar(self): |
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| 185 | # print mean MCD variables |
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| 186 | print "Pressure = %5.3f pascals. " % (self.pres) |
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| 187 | print "Density = %5.3f kilograms per cubic meter. " % (self.dens) |
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| 188 | print "Temperature = %3.0f kelvins (%4.0f degrees celsius)." % (self.temp,self.temp-273.15) |
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| 189 | print "Zonal wind = %5.3f meters per second." % (self.zonwind) |
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| 190 | print "Meridional wind = %5.3f meters per second." % (self.merwind) |
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| 191 | |
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| 192 | def printextvar(self,num): |
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| 193 | # print extra MCD variables |
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| 194 | num = self.convertlab(num) |
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| 195 | print self.getextvarlab(num) + " ..... " + str(self.extvar[num-1]) |
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| 196 | |
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| 197 | def printallextvar(self): |
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| 198 | # print all extra MCD variables |
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| 199 | for i in range(50): self.printextvar(i+1) |
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| 200 | |
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| 201 | def htmlprinttabextvar(self,tabtodo): |
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| 202 | print "Results from the Mars Climate Database" |
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| 203 | print "<ul>" |
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| 204 | for i in range(len(tabtodo)): print "<li>" ; self.printextvar(tabtodo[i]) ; print "</li>" |
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| 205 | print "</ul>" |
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| 206 | print "<hr>" |
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| 207 | print "SETTINGS<br />" |
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| 208 | self.printcoord() |
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| 209 | self.printset() |
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| 210 | |
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| 211 | def printmcd(self): |
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| 212 | # 1. call MCD 2. print settings 3. print mean vars |
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| 213 | self.update() |
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| 214 | self.printcoord() |
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| 215 | print "-------------------------------------------" |
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| 216 | self.printmeanvar() |
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| 217 | |
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| 218 | ######################## |
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| 219 | ### Several requests ### |
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| 220 | ######################## |
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| 221 | |
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| 222 | def prepare(self,ndx=None,ndy=None): |
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| 223 | ### prepare I/O arrays for 1d slices |
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| 224 | if ndx is None: print "No dimension in prepare. Exit. Set at least ndx." ; exit() |
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| 225 | else: self.xcoord = np.ones(ndx) |
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| 226 | if ndy is None: dashape = (ndx) ; dashapemean = (ndx,6) ; dashapeext = (ndx,101) ; self.ycoord = None |
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| 227 | else: dashape = (ndx,ndy) ; dashapemean = (ndx,ndy,6) ; dashapeext = (ndx,ndy,101) ; self.ycoord = np.ones(ndy) |
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| 228 | self.prestab = np.ones(dashape) ; self.denstab = np.ones(dashape) ; self.temptab = np.ones(dashape) |
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| 229 | self.zonwindtab = np.ones(dashape) ; self.merwindtab = np.ones(dashape) |
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| 230 | self.meanvartab = np.ones(dashapemean) ; self.extvartab = np.ones(dashapeext) |
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| 231 | |
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| 232 | def getextvar(self,num): |
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| 233 | ### get a given var in extvartab |
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| 234 | try: field=self.extvartab[:,:,num] |
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| 235 | except: field=self.extvartab[:,num] |
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| 236 | return field |
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| 237 | |
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| 238 | def definefield(self,choice): |
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| 239 | ### for analysis or plot purposes, set field and field label from user-defined choice |
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| 240 | choice = self.convertlab(choice) |
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| 241 | field = self.getextvar(choice); fieldlab = self.getextvarlab(choice) |
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| 242 | return field,fieldlab |
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| 243 | |
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| 244 | ################### |
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| 245 | ### 1D analysis ### |
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| 246 | ################### |
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| 247 | |
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| 248 | def put1d(self,i): |
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| 249 | ## fill in subscript i in output arrays |
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| 250 | ## (arrays must have been correctly defined through prepare) |
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| 251 | if self.prestab is None: myplot.errormess("arrays must be prepared first through self.prepare") |
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| 252 | self.prestab[i] = self.pres ; self.denstab[i] = self.dens ; self.temptab[i] = self.temp |
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| 253 | self.zonwindtab[i] = self.zonwind ; self.merwindtab[i] = self.merwind |
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| 254 | self.meanvartab[i,1:5] = self.meanvar[0:4] ## note: var numbering according to MCD manual is kept |
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| 255 | self.extvartab[i,1:100] = self.extvar[0:99] ## note: var numbering according to MCD manual is kept |
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| 256 | |
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| 257 | def diurnal(self,nd=13,start=0.,end=24.): |
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| 258 | ### retrieve a local time slice |
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| 259 | self.xlabel = "Local time (Martian hour)" |
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| 260 | self.prepare(ndx=nd) ; self.xcoord = np.linspace(start,end,nd) |
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| 261 | for i in range(nd): self.loct = self.xcoord[i] ; self.update() ; self.put1d(i) |
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| 262 | |
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| 263 | def zonal(self,nd=37,start=-180.,end=180.): |
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| 264 | ### retrieve a longitude slice |
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| 265 | self.xlabel = "East longitude (degrees)" |
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| 266 | self.prepare(ndx=nd) ; self.xcoord = np.linspace(start,end,nd) |
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| 267 | for i in range(nd): self.lon = self.xcoord[i] ; self.update() ; self.put1d(i) |
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| 268 | |
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| 269 | def meridional(self,nd=19,start=-90.,end=90.): |
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| 270 | ### retrieve a latitude slice |
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| 271 | self.xlabel = "North latitude (degrees)" |
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| 272 | self.prepare(ndx=nd) ; self.xcoord = np.linspace(start,end,nd) |
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| 273 | for i in range(nd): self.lat = self.xcoord[i] ; self.update() ; self.put1d(i) |
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| 274 | |
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| 275 | def profile(self,nd=20,start=0.,end=120000.,tabperso=None): |
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| 276 | ### retrieve an altitude slice (profile) |
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| 277 | self.xlabel = "Altitude (m)" |
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| 278 | if tabperso is not None: nd = len(tabperso) |
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| 279 | self.prepare(ndx=nd) |
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| 280 | if tabperso is None: self.xcoord = np.linspace(start,end,nd) |
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| 281 | else: self.xcoord = tabperso |
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| 282 | for i in range(nd): self.xz = self.xcoord[i] ; self.update() ; self.put1d(i) |
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| 283 | |
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| 284 | def seasonal(self,nd=12,start=0.,end=360.): |
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| 285 | ### retrieve a seasonal slice |
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| 286 | self.xlabel = "Areocentric longitude (degrees)" |
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| 287 | self.prepare(ndx=nd) ; self.xcoord = np.linspace(start,end,nd) |
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| 288 | for i in range(nd): self.xdate = self.xcoord[i] ; self.update() ; self.put1d(i) |
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| 289 | |
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| 290 | def makeplot1d(self,choice,vertplot=0): |
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| 291 | ### one 1D plot is created for the user-defined variable in choice. |
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| 292 | (field, fieldlab) = self.definefield(choice) |
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| 293 | if vertplot != 1: absc = self.xcoord ; ordo = field ; ordolab = fieldlab ; absclab = self.xlabel |
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| 294 | else: ordo = self.xcoord ; absc = field ; absclab = fieldlab ; ordolab = self.xlabel |
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| 295 | mpl.plot(absc,ordo,'-bo') ; mpl.ylabel(ordolab) ; mpl.xlabel(absclab) #; mpl.xticks(query.xcoord) |
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| 296 | mpl.figtext(0.5, 0.01, "Mars Climate Database (c) LMD/OU/IAA/ESA/CNES", ha='center') |
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| 297 | |
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| 298 | def plot1d(self,tabtodo,vertplot=0): |
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| 299 | ### complete 1D figure with possible multiplots |
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| 300 | if isinstance(tabtodo,np.str): tabtodo=[tabtodo] ## so that asking one element without [] is possible. |
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| 301 | if isinstance(tabtodo,np.int): tabtodo=[tabtodo] ## so that asking one element without [] is possible. |
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| 302 | fig = mpl.figure() ; subv,subh = myplot.definesubplot( len(tabtodo) , fig ) |
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| 303 | for i in range(len(tabtodo)): mpl.subplot(subv,subh,i+1).grid(True, linestyle=':', color='grey') ; self.makeplot1d(tabtodo[i],vertplot) |
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| 304 | |
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| 305 | ################### |
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| 306 | ### 2D analysis ### |
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| 307 | ################### |
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| 308 | |
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| 309 | def latlon(self,ndx=37,startx=-180.,endx=180.,ndy=19,starty=-90.,endy=90.,fixedlt=False): |
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| 310 | ### retrieve a latitude/longitude slice |
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| 311 | ### default is: local time is not fixed. user-defined local time is at longitude 0. |
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| 312 | self.xlabel = "East longitude (degrees)" ; self.ylabel = "North latitude (degrees)" |
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| 313 | self.prepare(ndx=ndx,ndy=ndy) |
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| 314 | self.xcoord = np.linspace(startx,endx,ndx) ; self.ycoord = np.linspace(starty,endy,ndy) |
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| 315 | if not fixedlt: umst = self.loct |
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| 316 | for i in range(ndx): |
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| 317 | for j in range(ndy): |
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| 318 | self.lon = self.xcoord[i] ; self.lat = self.ycoord[j] |
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| 319 | if not fixedlt: self.loct = (umst + self.lon/15.) % 24 |
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| 320 | self.update() ; self.put2d(i,j) |
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| 321 | if not fixedlt: self.loct = umst |
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| 322 | |
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| 323 | def put2d(self,i,j): |
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| 324 | ## fill in subscript i,j in output arrays |
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| 325 | ## (arrays must have been correctly defined through prepare) |
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| 326 | if self.prestab is None: myplot.errormess("arrays must be prepared first through self.prepare") |
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| 327 | self.prestab[i,j] = self.pres ; self.denstab[i,j] = self.dens ; self.temptab[i,j] = self.temp |
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| 328 | self.zonwindtab[i,j] = self.zonwind ; self.merwindtab[i,j] = self.merwind |
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| 329 | self.meanvartab[i,j,1:5] = self.meanvar[0:4] ## note: var numbering according to MCD manual is kept |
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| 330 | self.extvartab[i,j,1:100] = self.extvar[0:99] ## note: var numbering according to MCD manual is kept |
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| 331 | |
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| 332 | def makemap2d(self,choice,incwind=False,fixedlt=False): |
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| 333 | ### one 2D map is created for the user-defined variable in choice. |
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| 334 | self.latlon(fixedlt=fixedlt) ## a map is implicitely a lat-lon plot. otherwise it is a plot (cf. makeplot2d) |
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| 335 | (field, fieldlab) = self.definefield(choice) |
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| 336 | if incwind: |
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| 337 | (windx, fieldlabwx) = self.definefield("u") |
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| 338 | (windy, fieldlabwy) = self.definefield("v") |
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| 339 | myplot.maplatlon(self.xcoord,self.ycoord,field,title=fieldlab,proj="cyl",vecx=windx,vecy=windy) |
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| 340 | else: |
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| 341 | myplot.maplatlon(self.xcoord,self.ycoord,field,title=fieldlab,proj="moll") |
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| 342 | mpl.figtext(0.5, 0.0, "Mars Climate Database (c) LMD/OU/IAA/ESA/CNES", ha='center') |
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| 343 | |
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| 344 | def map2d(self,tabtodo,incwind=False,fixedlt=False): |
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| 345 | ### complete 2D figure with possible multiplots |
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| 346 | if isinstance(tabtodo,np.str): tabtodo=[tabtodo] ## so that asking one element without [] is possible. |
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| 347 | if isinstance(tabtodo,np.int): tabtodo=[tabtodo] ## so that asking one element without [] is possible. |
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| 348 | fig = mpl.figure() ; subv,subh = myplot.definesubplot( len(tabtodo) , fig ) |
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| 349 | for i in range(len(tabtodo)): mpl.subplot(subv,subh,i+1) ; self.makemap2d(tabtodo[i],incwind=incwind,fixedlt=fixedlt) |
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| 350 | |
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| 351 | ### TODO: makeplot2d, plot2d, passer plot settings |
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| 352 | |
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