ArcticDEM Strips ExampleΒΆ

PurposeΒΆ

Demonstrate how to work with individual strips when sampling ArcticDEM at ATL06-SR points

PrerequisitesΒΆ

  1. Access to the PGC S3 bucket pgc-opendata-dems
  2. gdalinfo tool installed local to jupyter lab

Import PackagesΒΆ

In [1]:
import warnings
warnings.filterwarnings("ignore") # suppress warnings
In [2]:
import sliderule
from sliderule import icesat2
import matplotlib
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
import pyproj
import re
import os

Initialize Python ClientΒΆ

In [3]:
icesat2.init("slideruleearth.io", verbose=True)

Build Region of InterestΒΆ

In [4]:
xy0=np.array([  -73000., -2683000.])
transformer = pyproj.Transformer.from_crs(3413, 4326)
xyB=[xy0[0]+np.array([-1, 1, 1, -1, -1])*1.e4, xy0[1]+np.array([-1, -1, 1, 1, -1])*1.e4]
llB=transformer.transform(*xyB)
poly=[{'lat':lat,'lon':lon} for lat, lon in zip(*llB)]
plist = []
for p in poly:
    plist += p["lat"], 
    plist += p["lon"],
region_of_interest = sliderule.toregion(plist)
region_of_interest["gdf"].plot()
Out[4]:
<Axes: >
No description has been provided for this image

Make Processing RequestΒΆ

ATL06-SR request includes the samples parameter to specify that ArcticDEM Strips dataset should be sampled at each generated ATL06 elevation.

In [5]:
parms = { "poly": region_of_interest["poly"],
          "cnf": "atl03_high",
          "ats": 10.0,
          "cnt": 5,
          "len": 40.0,
          "res": 120.0,
          "rgt": 658,
          "time_start":'2020-01-01',
          "time_end":'2021-01-01',
          "samples": {"strips": {"asset": "arcticdem-strips", "with_flags": True}} }
gdf = icesat2.atl06p(parms)

Print Out File DirectoryΒΆ

When a GeoDataFrame includes samples from rasters, each sample value has a file id that is used to look up the file name of the source raster for that value.

In [6]:
gdf
Out[6]:
n_fit_photons gt y_atc x_atc rgt rms_misfit region spot w_surface_window_final h_mean cycle pflags dh_fit_dx h_sigma segment_id geometry strips.value strips.file_id strips.time strips.flags
time
2018-11-10 17:05:42.211258624 11 30 -1364.037598 7303654.0 658 0.107745 3 4 3.0 2275.533651 1 0 -0.012619 0.109261 364370 POINT (-46.65997 65.51029) [2277.453125, 2272.9453125, 2271.671875, 2274.... [1, 3, 5, 29, 7, 13, 15, 31, 17, 19, 21] [1017414743.0, 1126629403.0, 1158946234.0, 117... [0, 4, 0, 0, 0, 4, 0, 0, 0, 0, 0]
2018-11-10 17:05:42.368041216 227 20 1790.479004 7302232.5 658 0.121384 3 5 3.0 2263.052227 1 0 -0.000610 0.008063 364299 POINT (-46.72430 65.49448) [2265.4140625, 2260.1484375, 2259.328125, 2264... [1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21] [1017414743.0, 1126629403.0, 1158946234.0, 118... [0, 4, 0, 4, 0, 0, 4, 0, 0, 0, 0]
2018-11-10 17:05:42.380253952 12 30 -1362.035522 7304855.0 658 0.090217 3 4 3.0 2272.956743 1 0 -0.008033 0.052065 364430 POINT (-46.66288 65.52099) [2275.21875, 2269.796875, 2269.0703125, 2271.6... [1, 3, 5, 29, 7, 13, 15, 31, 17, 19, 21] [1017414743.0, 1126629403.0, 1158946234.0, 117... [0, 4, 0, 0, 0, 4, 0, 0, 0, 0, 0]
2018-11-10 17:05:42.383788032 81 20 1790.565308 7302352.5 658 0.129675 3 5 3.0 2262.851026 1 0 -0.000366 0.018742 364305 POINT (-46.72457 65.49547) [2265.21875, 2260.3125, 2258.9453125, 2264.015... [1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21] [1017414743.0, 1126629403.0, 1158946234.0, 118... [0, 4, 0, 4, 0, 0, 4, 0, 0, 0, 0]
2018-11-10 17:05:42.397236480 63 30 -1361.838745 7304975.0 658 0.148493 3 4 3.0 2272.678267 1 0 0.000223 0.018720 364436 POINT (-46.66318 65.52206) [2274.5546875, 2269.8359375, 2268.7578125, 227... [1, 3, 5, 29, 7, 13, 15, 31, 17, 19, 21] [1017414743.0, 1126629403.0, 1158946234.0, 117... [0, 4, 0, 0, 0, 4, 0, 0, 0, 0, 0]
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...
2023-05-03 11:02:23.800296960 289 50 -3174.091064 7321509.5 658 0.127017 3 5 3.0 2247.423257 19 0 -0.000460 0.007477 365262 POINT (-46.66367 65.67123) [2249.7734375, 2245.1171875, 2243.515625, 2245... [77309411329, 77309411331, 77309411333, 773094... [1017414743.0, 1126629403.0, 1158946234.0, 117... [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
2023-05-03 11:02:23.805416448 206 30 60.575111 7321429.5 658 0.092648 3 3 3.0 2231.346165 19 0 -0.002332 0.006456 365258 POINT (-46.73338 65.66730) [2233.734375, 2228.8671875, 2227.265625, 2231.... [77309411329, 77309411331, 77309411333, 773094... [1017414743.0, 1126629403.0, 1158946234.0, 118... [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4]
2023-05-03 11:02:23.822418176 209 30 60.906044 7321549.5 658 0.123678 3 3 3.0 2230.992015 19 0 -0.000408 0.008562 365264 POINT (-46.73368 65.66837) [2233.5546875, 2228.46875, 2227.0390625, 2231.... [77309411329, 77309411331, 77309411333, 773094... [1017414743.0, 1126629403.0, 1158946234.0, 118... [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4]
2023-05-03 11:02:23.839176704 195 30 60.734127 7321669.5 658 0.104834 3 3 3.0 2230.727999 19 0 -0.002432 0.007513 365270 POINT (-46.73396 65.66944) [2233.0390625, 2228.25, 2226.453125, 2231.2812... [77309411329, 77309411331, 77309411333, 773094... [1017414743.0, 1126629403.0, 1158946234.0, 118... [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4]
2023-05-03 11:02:23.856234496 229 30 60.667919 7321789.5 658 0.132601 3 3 3.0 2230.316261 19 0 -0.002620 0.008819 365276 POINT (-46.73425 65.67052) [2232.5390625, 2227.75, 2226.3984375, 2230.914... [77309411329, 77309411331, 77309411333, 773094... [1017414743.0, 1126629403.0, 1158946234.0, 118... [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4]

7816 rows Γ— 20 columns

In [7]:
gdf.attrs['file_directory']
Out[7]:
{30064771086: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170729_103001006EAACB00_103001006D208B00_2m_lsf_seg1_bitmask.tif',
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 30064771093: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20151020_10400100125F0F00_104001001298F100_2m_lsf_seg1_dem.tif',
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 30064771091: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009C22C400_103001009CC8F200_2m_lsf_seg1_dem.tif',
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 4294967300: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20160926_102001005377FC00_10200100569CB700_2m_lsf_seg1_bitmask.tif',
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 4294967319: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg14_dem.tif',
 4294967316: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20170806_104001003148F400_104001002FC8AD00_2m_lsf_seg1_bitmask.tif',
 4294967317: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20170806_104001003148F400_104001002FC8AD00_2m_lsf_seg1_dem.tif',
 4294967299: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20150918_1020010042926D00_10200100438AAA00_2m_lsf_seg2_dem.tif',
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 4294967301: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20160926_102001005377FC00_10200100569CB700_2m_lsf_seg1_dem.tif',
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 4294967304: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20190818_102001008EBDEE00_102001008B650400_2m_lsf_seg1_bitmask.tif',
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 4294967309: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170214_1030010064C30800_1030010064567600_2m_lsf_seg1_dem.tif',
 4294967324: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg11_bitmask.tif',
 4294967314: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009C22C400_103001009CC8F200_2m_lsf_seg1_bitmask.tif',
 4294967313: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170729_103001006EAACB00_103001006D208B00_2m_lsf_seg1_dem.tif',
 4294967310: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170724_103001006D472600_103001006E241A00_2m_lsf_seg2_bitmask.tif',
 4294967327: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg13_dem.tif',
 4294967308: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170214_1030010064C30800_1030010064567600_2m_lsf_seg1_bitmask.tif',
 4294967307: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20211006_10200100B8BA0100_10200100B9218100_2m_lsf_seg1_dem.tif',
 4294967303: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170612_10200100618B7200_10200100612AED00_2m_lsf_seg1_dem.tif',
 4294967323: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009B931A00_103001009CA1C200_2m_lsf_seg1_dem.tif',
 4294967306: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20211006_10200100B8BA0100_10200100B9218100_2m_lsf_seg1_bitmask.tif',
 4294967321: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170505_102001006213BD00_1020010060D46800_2m_lsf_seg1_dem.tif',
 4294967298: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20150918_1020010042926D00_10200100438AAA00_2m_lsf_seg2_bitmask.tif',
 51539607568: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170729_103001006EAACB00_103001006D208B00_2m_lsf_seg1_bitmask.tif',
 51539607552: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20120402_102001001A8F1B00_102001001A93FB00_2m_lsf_seg1_bitmask.tif',
 51539607561: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20190818_102001008EBDEE00_102001008B650400_2m_lsf_seg1_dem.tif',
 51539607587: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20151020_10400100125F0F00_104001001298F100_2m_lsf_seg1_dem.tif',
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 68719476743: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170505_102001006213BD00_1020010060D46800_2m_lsf_seg1_dem.tif',
 68719476738: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20150918_1020010042926D00_10200100438AAA00_2m_lsf_seg2_bitmask.tif',
 34359738382: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170729_103001006EAACB00_103001006D208B00_2m_lsf_seg1_bitmask.tif',
 34359738368: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20120402_102001001A8F1B00_102001001A93FB00_2m_lsf_seg1_bitmask.tif',
 34359738391: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20190818_102001008EBDEE00_102001008B650400_2m_lsf_seg1_dem.tif',
 34359738401: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20151020_10400100125F0F00_104001001298F100_2m_lsf_seg1_dem.tif',
 34359738381: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170724_103001006D472600_103001006E241A00_2m_lsf_seg2_dem.tif',
 34359738372: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20160926_102001005377FC00_10200100569CB700_2m_lsf_seg1_bitmask.tif',
 34359738396: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20151018_1020010045B22800_10200100479AFE00_2m_lsf_seg1_bitmask.tif',
 34359738374: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170505_102001006213BD00_1020010060D46800_2m_lsf_seg1_bitmask.tif',
 34359738392: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg13_bitmask.tif',
 34359738395: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg14_dem.tif',
 34359738386: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20170806_104001003148F400_104001002FC8AD00_2m_lsf_seg1_bitmask.tif',
 34359738387: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20170806_104001003148F400_104001002FC8AD00_2m_lsf_seg1_dem.tif',
 34359738371: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20150918_1020010042926D00_10200100438AAA00_2m_lsf_seg2_dem.tif',
 34359738369: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20120402_102001001A8F1B00_102001001A93FB00_2m_lsf_seg1_dem.tif',
 34359738389: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg11_dem.tif',
 34359738373: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20160926_102001005377FC00_10200100569CB700_2m_lsf_seg1_dem.tif',
 34359738385: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009C22C400_103001009CC8F200_2m_lsf_seg1_dem.tif',
 34359738398: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009B931A00_103001009CA1C200_2m_lsf_seg1_bitmask.tif',
 34359738394: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg14_bitmask.tif',
 34359738390: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20190818_102001008EBDEE00_102001008B650400_2m_lsf_seg1_bitmask.tif',
 34359738397: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20151018_1020010045B22800_10200100479AFE00_2m_lsf_seg1_dem.tif',
 34359738376: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170612_10200100618B7200_10200100612AED00_2m_lsf_seg1_bitmask.tif',
 34359738400: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20151020_10400100125F0F00_104001001298F100_2m_lsf_seg1_bitmask.tif',
 34359738388: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg11_bitmask.tif',
 34359738403: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170214_1030010064C30800_1030010064567600_2m_lsf_seg1_dem.tif',
 34359738384: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009C22C400_103001009CC8F200_2m_lsf_seg1_bitmask.tif',
 34359738383: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170729_103001006EAACB00_103001006D208B00_2m_lsf_seg1_dem.tif',
 34359738380: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170724_103001006D472600_103001006E241A00_2m_lsf_seg2_bitmask.tif',
 34359738393: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg13_dem.tif',
 34359738402: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170214_1030010064C30800_1030010064567600_2m_lsf_seg1_bitmask.tif',
 34359738379: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20211006_10200100B8BA0100_10200100B9218100_2m_lsf_seg1_dem.tif',
 34359738377: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170612_10200100618B7200_10200100612AED00_2m_lsf_seg1_dem.tif',
 34359738399: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009B931A00_103001009CA1C200_2m_lsf_seg1_dem.tif',
 34359738378: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20211006_10200100B8BA0100_10200100B9218100_2m_lsf_seg1_bitmask.tif',
 34359738375: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170505_102001006213BD00_1020010060D46800_2m_lsf_seg1_dem.tif',
 34359738370: '/vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20150918_1020010042926D00_10200100438AAA00_2m_lsf_seg2_bitmask.tif'}

Pull Out Bounding Box of RasterΒΆ

This step requires AWS credentials to be able to access S3 and gdalinfo be installed on the host machine to read the bounding box for each raster sampled by SlideRule.

In [8]:
# helper functions
def getXY(line):
    line = line.replace("(","$")
    line = line.replace(")","$")
    point = line.split("$")[1]
    coord = point.split(",")
    x = float(coord[0].strip())
    y = float(coord[1].strip())
    return x, y

def getLonLat(line):
    line = line.replace("(","$")
    line = line.replace(")","$")
    point = line.split("$")[3]
    coord = point.split(",")
    deg, minutes, seconds, direction = re.split('[d\'"]', coord[1].strip())
    lon = (float(deg) + float(minutes)/60 + float(seconds)/(60*60)) * (-1 if direction in ['W', 'S'] else 1)
    deg, minutes, seconds, direction = re.split('[d\'"]', coord[0].strip())
    lat = (float(deg) + float(minutes)/60 + float(seconds)/(60*60)) * (-1 if direction in ['W', 'S'] else 1)
    return [lon, lat]

def getBB(dem):
    os.system("gdalinfo {} > /tmp/r.txt".format(dem))
    with open("/tmp/r.txt", "r") as file:
        lines = file.readlines()
        for line in lines:
            if "Upper Left" in line:
                ul = getLonLat(line)
            elif "Lower Left" in line:
                ll = getLonLat(line)
            elif "Upper Right" in line:
                ur = getLonLat(line)
            elif "Lower Right" in line:
                lr = getLonLat(line)
    return ul + ll + lr + ur + ul
In [9]:
file_dict = {}
for file_id, file_name in gdf.attrs['file_directory'].items():
    if "bitmask" in file_name:
        continue
    if file_name not in file_dict:
        file_dict[file_name] = {"ids": []}
    file_dict[file_name]["ids"].append(file_id)
In [10]:
# get boundaries for each raster
for file_name in file_dict:
    print("Retrieving raster info for:", file_name)
    rlist = getBB(file_name)
    file_dict[file_name]["region"] = sliderule.toregion(rlist)
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20151020_10400100125F0F00_104001001298F100_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170724_103001006D472600_103001006E241A00_2m_lsf_seg2_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20170806_104001003148F400_104001002FC8AD00_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20150918_1020010042926D00_10200100438AAA00_2m_lsf_seg2_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20120402_102001001A8F1B00_102001001A93FB00_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg11_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20160926_102001005377FC00_10200100569CB700_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009C22C400_103001009CC8F200_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20151018_1020010045B22800_10200100479AFE00_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170729_103001006EAACB00_103001006D208B00_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170612_10200100618B7200_10200100612AED00_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20191026_103001009B931A00_103001009CA1C200_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20170505_102001006213BD00_1020010060D46800_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20190818_102001008EBDEE00_102001008B650400_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg14_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV02_20170214_1030010064C30800_1030010064567600_2m_lsf_seg1_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV03_20210315_1040010066A5D200_104001006770A700_2m_lsf_seg13_dem.tif
Retrieving raster info for: /vsis3/pgc-opendata-dems/arcticdem/strips/s2s041/2m/n65w047/SETSM_s2s041_WV01_20211006_10200100B8BA0100_10200100B9218100_2m_lsf_seg1_dem.tif

Pull Out Individual DEM Values and Put in Separate ColumnsΒΆ

In [11]:
def getValue(x, file_ids):
    for file_id in file_ids:
        l = np.where(x['strips.file_id'] == file_id)[0]
        if len(l) == 1:
            return x['strips.value'][l[0]]
    return None
sampled_data = gdf[gdf['strips.time'].notnull()]
for file_name in file_dict:
    sampled_data[file_name] = sampled_data.apply(lambda x: getValue(x, file_dict[file_name]["ids"]), axis=1)

Plot Overlays of Boundaries and ReturnsΒΆ

In [12]:
import warnings
with warnings.catch_warnings():
    warnings.simplefilter("ignore")
    fig = plt.figure(num=None, figsize=(24, 24))
    region_lons = [p["lon"] for p in region_of_interest["poly"]]
    region_lats = [p["lat"] for p in region_of_interest["poly"]]
    ax = {}
    k = 0
    for file_name in file_dict:
        raster = file_dict[file_name]
        raster_lons = [p["lon"] for p in raster["region"]["poly"]]
        raster_lats = [p["lat"] for p in raster["region"]["poly"]]
        plot_data = sampled_data[sampled_data[file_name].notnull()]
        ax[k] = plt.subplot(5,4,k+1)
        gdf.plot(ax=ax[k], column='h_mean', color='y', markersize=0.5)
        plot_data.plot(ax=ax[k], column='h_mean', color='b', markersize=0.5)
        ax[k].plot(region_lons, region_lats, linewidth=1.5, color='r', zorder=2)
        ax[k].plot(raster_lons, raster_lats, linewidth=1.5, color='g', zorder=2)
        k += 1
    plt.tight_layout()
No description has been provided for this image

Plot the Different ArcticDEM Values against the SlideRule ATL06-SR ValuesΒΆ

In [13]:
# Select DEM File ID
file_name = list(file_dict.keys())[0]

# Setup Plot
fig,ax = plt.subplots(num=None, figsize=(10, 8))
ax.set_title("SlideRule vs. ArcticDEM Elevations")
ax.set_xlabel('distance (m)')
ax.set_ylabel('height (m)')
legend_elements = []

# Filter Data to Plot
plot_data = sampled_data[sampled_data[file_name].notnull()]

# Set X Axis
x_axis = plot_data["x_atc"]

# Plot SlideRule ATL06 Elevations
sc1 = ax.scatter(x_axis, plot_data["h_mean"].values, c='red', s=2.5)
legend_elements.append(matplotlib.lines.Line2D([0], [0], color='red', lw=6, label='ATL06-SR'))

# Plot ArcticDEM Elevations
sc2 = ax.scatter(x_axis, plot_data[file_name].values, c='blue', s=2.5)
legend_elements.append(matplotlib.lines.Line2D([0], [0], color='blue', lw=6, label='ArcticDEM'))

# Display Legend
lgd = ax.legend(handles=legend_elements, loc=3, frameon=True)
lgd.get_frame().set_alpha(1.0)
lgd.get_frame().set_edgecolor('white')

# Show Plot
plt.show()
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In [ ]: