 The most significant benefit of the use of the technique is that it has provided a more complete history of tropical cyclone intensity in areas where aircraft reconnaissance is neither possible nor routinely available . Intensity estimates of maximum sustained wind are currently within 5 miles per hour ( 8 @.@ 0 km / h ) of what aircraft are able to measure half of the time , though the assignment of intensity of systems with strengths between moderate tropical @-@ storm force ( 60 miles per hour ( 97 km / h ) ) and weak hurricane- or typhoon @-@ force ( 100 miles per hour ( 160 km / h ) ) is the least certain . Its overall precision has not always been true , as refinements in the technique led to intensity changes between 1972 and 1977 of up to 20 miles per hour ( 32 km / h ) . The method is internally consistent in that it constrains rapid increases or decreases in tropical cyclone intensity . Some tropical cyclones fluctuate in strength more than the 2 @.@ 5 T numbers per day limit allowed by the rule , which can work to the technique 's disadvantage and has led to occasional abandonment of the constraints since the 1980s . Systems with small eyes near the limb , or edge , of a satellite image can be biased too weakly using the technique , which can be resolved through use of polar @-@ orbiting satellite imagery . Subtropical cyclone intensity cannot be determined using Dvorak , which led to the development of the Hebert @-@ Poteat technique in 1975 . Cyclones undergoing extratropical transition , losing their thunderstorm activity , see their intensities underestimated using the Dvorak technique . This led to the development of the Miller and Lander extratropical transition technique which can be used under these circumstances . 
 The most significant benefit of the use of the technique is that it <a href='been_done' title='1'><mark>has</mark></a> provided a more complete history of tropical cyclone intensity in areas where aircraft reconnaissance <a href='drop_aux' title='2'><mark>is</mark></a>neither possible nor routinely available . Intensity estimates of maximum sustained wind <a href='drop_aux' title='3'><mark>are</mark></a>currently within 5 miles per hour ( 8 @.@ 0 km / h ) of what aircraft are able to measure half of the time , though the assignment of intensity of systems with strengths between moderate tropical @-@ storm force ( 60 miles per hour ( 97 km / h ) ) and weak hurricane- or typhoon @-@ force ( 100 miles per hour ( 160 km / h ) ) <a href='drop_aux' title='4'><mark>is</mark></a>the least certain . Its overall precision <a href='uninflect' title='5'><mark>has</mark></a> <a href='negative_concord' title='6'><mark>not</mark></a>always <a href='negative_concord' title='7'><mark>been</mark></a> true , as refinements in the technique led to intensity changes between 1972 and 1977 of up to 20 miles per hour ( 32 km / h ) . The method <a href='drop_aux' title='8'><mark>is</mark></a>internally consistent in that it <a href='uninflect' title='9'><mark>constrains</mark></a> rapid increases or decreases in tropical cyclone intensity . Some tropical cyclones fluctuate in strength more than the 2 @.@ 5 T numbers per day limit allowed by the rule , which can work to the technique <a href='null_genetive' title='10'><mark>'s</mark></a>disadvantage and <a href='been_done' title='11'><mark>has</mark></a> led to occasional abandonment of the constraints since the 1980s . Systems with small eyes near the limb , or edge , of a satellite image can be biased too weakly using the technique , which can be resolved through use of polar @-@ orbiting satellite imagery . Subtropical cyclone intensity cannot be determined using Dvorak , which led to the development of the Hebert @-@ Poteat technique in 1975 . Cyclones undergoing extratropical transition , losing their thunderstorm activity , see their intensities underestimated using the Dvorak technique . This led to the development of the Miller and Lander extratropical transition technique which can be used under these circumstances . 
The most significant benefit of da use of tdatechnique is that it done provided a more complete history of tropical cyclone intensity in areas where aircraft reconnaissance neither possible nor routinely available . Intensity estimates of maximum sustained wind currently within 5 miles per hr ( 8 @.@ 0 km / h ) of wat aircraft are able to measure half of the time , though thdassignment of intensity of systems with strengths between moderate tropical @-@ storm force ( 60 miles per hour ( 97 km / h ) ) and weak hurricane- or typhoon @-@ force ( 100 miles per hour ( 160 km / h ) ) the least certain . Its overall precision have always ain't tru , as refinements in thedachnique led to intensity changes between 1972 and 1977 of up to 20 miles per hohr 32 km / h ) . The dahod internally consistent in that it constrain rapid increases or decreases in tropical cyclone intensity . Some tropical cyclones fluctuate in strength more than the 2 @.@ 5 T numbers per day limit allowed by the rule , which can work to the tdanique  disadvantage and done led to occasional abandonment of the codaraints since the 198da. Systems with small eyes near the limbdaor edge , of a satellite image can be biased too weakly using the technique , which can b resolved through use of polar @-@ orbiting satellite imagery . Subtropical cyclone intensity cannot bbdetermined usin Dvorak , which led to the develdaent of the Hebert @-@ Poteat technique in 1975 . Cyclones undergoing extratropical transition , losin their thunderstorm activity , see their intensities underestimated uusinthe Dvorak technique . This led to the develodant of the Miller and Lander extratropical transition technique which can be used under dem circumstances .