The following represents a summary of Zdr bias determinations from vertical pointing, during the initial FRONT-DE and MASCRAD experiments, right through to tear-down prior to PECAN. The radar was in "test mode," with relatively little attention paid to changes that might affect the calibration of the radar system. It is expected that Zdr bias will not be constant during the time period shown, and the information is provided for completness, only.
(See the page https://www.eol.ucar.edu/content/zdr-bias-determination-s-pol-pecan, for some details on Zdr Bias Determination).
A full set of bias histograms can be found here. (Note: the Drupal "advanced import" for a gallery scrambles the order of the plots)
Date Time ngates mean mode median std_dev 20140127 165705 8619 0.554 0.443 0.548 0.31 20140127 175826 14054 0.549 0.573 0.551 0.31 20140127 181238 2857 0.545 0.402 0.547 0.30 20140130 221122 1758 0.639 0.256 0.621 0.58 20140131 053234 24004 0.619 0.662 0.614 0.42 20140220 180101 0 NaN NaN NaN NaN 20140220 181411 0 NaN NaN NaN NaN 20140304 155228 1853 0.749 0.597 0.570 0.92 20140304 171620 3048 0.780 0.452 0.569 0.96 20140307 173545 3454 0.717 0.582 0.709 0.44 20140307 173829 1274 0.728 0.410 0.707 0.44 20140307 174114 1290 0.750 0.363 0.728 0.51 20140307 174358 1383 0.735 0.493 0.715 0.52 20140307 174642 1525 0.752 0.456 0.744 0.59 20140307 174927 1255 0.748 0.794 0.716 0.62 20140307 173626 9103 0.736 0.712 0.718 0.52 20140401 180040 0 NaN NaN NaN NaN 20140413 215746 16534 0.709 0.585 0.688 0.30 20140419 232852 44059 0.551 0.608 0.549 0.26 20140419 233136 42060 0.560 0.575 0.557 0.37 20140419 233420 34947 0.563 0.463 0.562 0.33 20140419 233704 28324 0.574 0.620 0.569 0.41 20140419 234004 24286 0.570 0.595 0.566 0.41 20140419 234232 31287 0.571 0.585 0.569 0.34 20140419 234516 34893 0.565 0.532 0.564 0.31 20140419 234801 24990 0.567 0.513 0.564 0.38 20140419 235004 30924 0.555 0.333 0.554 0.33 20140419 235248 24254 0.563 0.582 0.562 0.35 20140419 232933 308530 0.564 0.608 0.561 0.35 20140512 190520 0 NaN NaN NaN NaN 20140516 205028 35840 0.528 0.505 0.522 0.42 20140516 210253 19400 0.555 0.479 0.546 0.44 20140516 211503 17723 0.513 0.501 0.512 0.38 20140516 205345 62289 0.536 0.505 0.530 0.43 20140530 165056 58031 0.536 0.496 0.527 0.34 20140610 143906 530 0.077 -3.261 -0.022 1.74 20140610 144525 0 NaN NaN NaN NaN 20140619 015947 134554 0.518 0.475 0.514 0.29 20140627 201023 28625 0.459 0.482 0.460 0.34 20140627 201305 57597 0.455 0.461 0.459 0.09 20140627 201548 22057 0.466 0.479 0.467 0.37 20140627 201838 1542 0.521 -3.653 0.719 2.12 20140627 202121 15011 0.464 0.490 0.462 0.46 20140627 231459 15286 0.477 0.543 0.482 0.33 20140627 231742 17634 0.454 0.463 0.455 0.25 20140627 232042 14374 0.458 0.368 0.462 0.28 20140627 232325 7311 0.440 0.338 0.440 0.22 20140627 232610 17994 0.458 0.437 0.458 0.21 20140627 232853 15787 0.450 0.441 0.456 0.21 20140628 190151 0 NaN NaN NaN NaN 20140628 190502 1307 0.348 0.358 0.353 0.53 20140628 190801 0 NaN NaN NaN NaN 20140717 001004 62900 0.488 0.496 0.488 0.18 20140717 001259 22722 0.469 0.480 0.466 0.38 20140717 001555 25108 0.470 0.467 0.466 0.39 20140717 001838 29867 0.476 0.504 0.480 0.25 20140717 010431 48587 0.487 0.432 0.486 0.19 20140717 010746 40090 0.478 0.465 0.478 0.26 20140717 011056 30404 0.468 0.474 0.467 0.31 20140717 011339 30285 0.468 0.447 0.464 0.36 20140717 011622 24296 0.462 0.479 0.461 0.31 20140724 201414 64097 0.478 0.472 0.480 0.10 20140724 201828 67800 0.486 0.464 0.488 0.13 20140724 202142 90452 0.494 0.480 0.494 0.13 20140724 202457 66793 0.499 0.504 0.499 0.19 20140724 202812 27626 0.486 0.498 0.493 0.30 20140724 203113 3258 0.467 0.571 0.461 0.46 20140724 203113 3336 0.470 0.571 0.463 0.47 20140731 021452 724 0.494 0.475 0.487 0.20 20140926 191757 0 NaN NaN NaN NaN 20141001 212929 69045 0.583 0.609 0.582 0.23 20141001 213244 25538 0.588 0.573 0.587 0.30 20141001 213559 10972 0.581 0.454 0.576 0.23 20141001 213914 8674 0.581 0.557 0.583 0.24 20141001 214229 3816 0.591 0.488 0.588 0.23 20141001 214544 208 0.619 0.339 0.628 0.24 20141001 214859 0 NaN NaN NaN NaN 20141001 215213 0 NaN NaN NaN NaN 20141001 215528 59 0.515 0.463 0.492 0.38 20141001 215843 531 0.552 0.397 0.551 0.28 20141001 220158 2234 0.581 0.565 0.586 0.26 20141001 220513 13572 0.576 0.606 0.574 0.25 20141001 220828 34140 0.588 0.559 0.585 0.25 20141001 221143 11226 0.594 0.564 0.594 0.25 20141001 221458 4 0.900 0.347 0.934 0.44 20141001 221813 0 NaN NaN NaN NaN 20141001 222128 1 -1.934 -1.934 -1.934 0.00 20141001 222442 0 NaN NaN NaN NaN 20141001 222757 0 NaN NaN NaN NaN 20141001 223112 1 0.863 0.863 0.863 0.00 20141009 232940 35612 0.006 0.014 0.002 0.29 20141009 233319 35474 0.002 -0.081 0.002 0.23 20141009 233634 25894 -0.048 -0.013 -0.042 0.29 20141009 234110 21150 -0.103 -0.194 -0.101 0.35 20141009 234354 30043 -0.115 -0.048 -0.114 0.41 20141115 222717 671 0.079 -0.033 0.040 0.37 20141116 000318 54 0.020 -0.141 0.001 0.26 20141204 203436 3193 -0.080 -0.103 -0.103 0.31 20141204 204659 8378 -0.126 -0.103 -0.128 0.25 20141214 163350 7561 0.070 0.003 0.001 0.50 20141214 202731 1874 0.005 -0.163 -0.032 0.44 20141214 203033 6588 -0.018 -0.154 -0.028 0.33 20141214 163350 897 0.184 0.183 -0.001 0.77 20141214 201132 11443 0.025 -0.042 -0.012 0.40 20141214 202429 10327 -0.009 -0.154 -0.028 0.39 20141222 213349 13835 -0.106 -0.072 -0.108 0.20 20141222 213706 10995 -0.056 -0.125 -0.063 0.28 20141222 214008 14421 -0.051 -0.051 -0.053 0.23 20141222 214310 9391 -0.046 -0.019 -0.050 0.28 20141222 214613 1564 -0.070 -0.025 -0.066 0.33 20141222 214915 481 -0.031 0.017 -0.035 0.17 20141225 202853 2 0.348 -0.022 0.348 0.52 20141225 203158 2 0.297 0.141 0.297 0.22 20141225 203500 1 -0.062 -0.062 -0.062 0.00 20141225 203802 0 NaN NaN NaN NaN 20141225 204105 0 NaN NaN NaN NaN 20141225 204407 36 -0.127 -0.458 -0.103 0.11 20141225 204709 0 NaN NaN NaN NaN 20141225 205011 130 -0.089 -0.074 -0.089 0.13 20141225 205313 15 -0.047 -0.230 -0.038 0.11 20141225 205616 0 NaN NaN NaN NaN 20141225 211731 335 -0.035 -0.089 -0.039 0.14 20141225 210522 487 -0.029 -0.089 -0.035 0.14 20150204 170453 4043 0.099 -0.123 0.065 0.38 20150204 170811 2713 0.011 -0.105 0.001 0.32 20150204 170453 18434 0.032 0.058 0.016 0.32 20150215 204915 599 0.016 0.158 -0.033 0.33 20150215 205230 648 -0.035 -0.215 -0.040 0.19 20150215 205533 357 -0.083 -0.097 -0.060 0.19 20150215 205835 283 -0.082 -0.122 -0.072 0.21 20150215 210137 161 -0.068 -0.205 -0.078 0.21 20150215 210439 455 -0.017 -0.023 -0.018 0.20 20150215 210741 411 -0.021 -0.076 -0.016 0.20 20150215 023958 2914 -0.032 -0.215 -0.041 0.23 20150215 225602 1084 0.359 0.236 0.283 0.43 20150215 225602 1301 0.294 0.236 0.221 0.42 20150220 231713 2545 -0.044 -0.140 -0.047 0.25 20150221 150659 838 0.363 0.090 0.320 0.36 20150221 220953 651 0.021 0.240 0.034 0.20 20150222 164029 1888 0.086 0.116 0.082 0.20 20150325 151349 28528 -0.022 -0.031 -0.028 0.29 20150325 155459 9257 -0.003 -0.004 -0.013 0.33 20150325 160730 7960 -0.004 -0.093 -0.016 0.33
