{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Accessing trajectory data" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "First, import libraries:" ] }, { "cell_type": "code", "execution_count": 10, "metadata": {}, "outputs": [], "source": [ "import numpy as np\n", "import xarray as xr\n", "import netCDF4\n", "from matplotlib import pyplot as plt\n", "%matplotlib inline" ] }, { "cell_type": "code", "execution_count": 11, "metadata": {}, "outputs": [], "source": [ "Rtraj = xr.open_dataset('../../Data/6901254/6901254_Rtraj.nc')" ] }, { "cell_type": "code", "execution_count": 12, "metadata": {}, "outputs": [ { "data": { "text/html": [ "
<xarray.Dataset>\n", "Dimensions: (N_PARAM: 3, N_MEASUREMENT: 4289, N_CYCLE: 66, N_HISTORY: 1043)\n", "Dimensions without coordinates: N_PARAM, N_MEASUREMENT, N_CYCLE, N_HISTORY\n", "Data variables: (12/102)\n", " DATA_TYPE object b'Argo trajectory '\n", " FORMAT_VERSION object b'3.1 '\n", " HANDBOOK_VERSION object b'1.2 '\n", " REFERENCE_DATE_TIME object b'19500101000000'\n", " DATE_CREATION object b'20190115112520'\n", " DATE_UPDATE object b'20200625131710'\n", " ... ...\n", " HISTORY_PARAMETER (N_HISTORY) object b' ...\n", " HISTORY_PREVIOUS_VALUE (N_HISTORY) float32 nan nan ... nan nan\n", " HISTORY_INDEX_DIMENSION (N_HISTORY) object nan nan ... nan nan\n", " HISTORY_START_INDEX (N_HISTORY) float64 nan nan ... nan nan\n", " HISTORY_STOP_INDEX (N_HISTORY) float64 nan nan ... nan nan\n", " HISTORY_QCTEST (N_HISTORY) object b' ...\n", "Attributes:\n", " title: Argo float trajectory file\n", " institution: CORIOLIS\n", " source: Argo float\n", " history: 2019-01-15T11:25:20Z creation; 2020-06-25T1...\n", " references: http://www.argodatamgt.org/Documentation\n", " user_manual_version: 3.1\n", " Conventions: Argo-3.1 CF-1.6\n", " featureType: trajectory\n", " decoder_version: CODA_035b\n", " comment_on_resolution: JULD and PRES variable resolutions depend o...\n", " comment_on_measurement_code: Meaning of some specific measurement codes ...
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array([b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N',\n", " b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'Y', b'Y', b'Y',\n", " b'N', b'N', b'N', b'N', b'Y', b'N', b'Y', b'N', b'N', b'N', b'N', b'N',\n", " b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N',\n", " b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N', b'N',\n", " b'N', b'N', b'N', b'N', b'N', b'N'], dtype=object)
array([ nan, nan, 985. , 991. , 974. , 982. ,\n", " 1006.58826, 1032.4117 , 1022.4706 , 981.35297, 1015.7059 , 1017.82355,\n", " 985.2941 , 1007.375 , 1018.17645, 999.94116, 988.58826, 1016.05884,\n", " 995.64703, 1006.58826, 982. , 743.7059 , 1007.58826, 1017.94116,\n", " 1011.5294 , 1009.41174, 1022.5 , 1022. , 1017.64703, 1029.1765 ,\n", " 994.25 , 1029.8235 , 1001. , 991. , 986.64703, 991.17645,\n", " 988.1177 , 993.05884, 1032.6471 , 1021.58826, 1038.1765 , 1020.41174,\n", " 985. , 1000.94116, 1013.05884, 1034.4117 , 996.64703, 1009.05884,\n", " 1026.4706 , 1012.05884, 998.7647 , 981.4706 , 1025. , 1027.1177 ,\n", " 1020.2941 , 1010.94116, 1017.82355, 1025.1765 , 1021.94116, 991.1177 ,\n", " 1011.2353 , 995.17645, 989.8823 , 1014.8823 , 1009.58826, 1028.3529 ],\n", " dtype=float32)
array([nan, nan, b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1',\n", " b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1',\n", " b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1',\n", " b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1',\n", " b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1', b'1',\n", " b'1', b'1', b'1', b'1', b'1', b'1'], dtype=object)
array([nan, 1., 2., 2., 2., 2., 3., 3., 3., 3., 3., 3., 3., 3.,\n", " 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3.,\n", " 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3.,\n", " 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3., 3.,\n", " 3., 3., 3., 3., 3., 3., 3., 3., 3., 3.])
array([ 0., 1., 2., 3., 4., 5., 6., 7., 8., 9., 10., 11., 12., 13.,\n", " 14., 15., 16., 17., 18., 19., 20., 21., 22., 23., 24., 25., 26., 27.,\n", " 28., 29., 30., 31., 32., 33., 34., 35., 36., 37., 38., 39., 40., 41.,\n", " 42., 43., 44., 45., 46., 47., 48., 49., 50., 51., 52., 53., 54., 55.,\n", " 56., 57., 58., 59., 60., 61., 62., 63., 64., 65.])
array([nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan,\n", " nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan,\n", " nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan,\n", " nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan, nan,\n", " nan, nan, nan, nan, nan, nan, nan, nan, nan, nan])
array([b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A',\n", " b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A',\n", " b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A',\n", " b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A',\n", " b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A', b'A',\n", " b'A', b'A', b'A', b'A', b'A', b'A'], dtype=object)
array([b'IF ', b'IF ', b'IF ', ..., b'IF ', b'IF ', b'IF '], dtype=object)
array([b'ARFM', b'ARGQ', b'ARGQ', ..., b'ARFM', b'ARGQ', b'ARGQ'], dtype=object)
array([b'CODA', b'COQC', b'COQC', ..., b'CODA', b'COQC', b'COQC'], dtype=object)
array([b'027d', b'2.3 ', b'2.3 ', ..., b'035b', b'2.8 ', b'2.8 '], dtype=object)
array([b' ',\n", " b' ',\n", " b' ',\n", " ...,\n", " b' ',\n", " b' ',\n", " b' '],\n", " dtype=object)
array([b'20190115112520', b'20190115112534', b'20190115112534', ...,\n", " b'20200625131658', b'20200625131710', b'20200625131710'], dtype=object)
array([b' ', b' ', b' ', ..., b' ', b'QCP$', b'QCF$'], dtype=object)
array([b' ', b' ', b' ', ...,\n", " b' ', b' ', b' '],\n", " dtype=object)
array([nan, nan, nan, ..., nan, nan, nan], dtype=float32)
array([nan, nan, nan, ..., nan, nan, nan], dtype=object)
array([nan, nan, nan, ..., nan, nan, nan])
array([nan, nan, nan, ..., nan, nan, nan])
array([b' ', b' ', b' ', ...,\n", " b' ', b'00000000027873DE', b'0000000000700000'],\n", " dtype=object)