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MS036 – Simplified metadata

← Back to MS036 detail

Dataset

Database Code
MS036
Title
Cold air drainage transect studies at the Andrews Experimental Forest, 2002 to Present
Abstract
Temperature data are being collected to investigate the effects of elevation and local topographic position on the patterns of cold air drainage and pooling in the HJ Andrews Forest, and how they vary with synoptic weather patterns. The main focus of the study is cold air drainage in the Lookout Creek area, but others sites have been added to sample temperature signatures at other locations of the forest with topographic positions that need to be better understood. Here, quality controlled 15-minute raw data and aggregated daily minimum and maximum temperatures are available from several stations along 4 separate transects or clusters with some additional single sensors also included. Several of the quality flags indicate that the data failed the test and should not be used in analysis.
Keywords
meteorology; climatology; climate change; air temperature; topography; forest ecosystems; Long-Term Ecological Research (LTER)
Date begin
2001-01-12
Date end
2022-10-11
Principal Investigator
Christopher Daly

Entities

  1. Air Temperature (Daily minimum and maximum)
  2. Fine temporal resolution (15-minute) air temperature and light intensity data

1. Air Temperature (Daily minimum and maximum) - Attribute list

Air Temperature (Daily minimum and maximum) - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 1.0000 1.0000 number
TRANSECT varchar enum
SITECODE varchar enum
DATE datetime freetext
AIRTEMP_MAX_DAY numeric(0.200000) range -15.6000 51.0000 degrees Celsius
AIRTEMP_MAX_QC varchar enum
AIRTEMP_MIN_DAY numeric(0.200000) range -25.1000 47.6000 degrees Celsius
AIRTEMP_MIN_QC varchar enum

2. Fine temporal resolution (15-minute) air temperature and light intensity data - Attribute list

Fine temporal resolution (15-minute) air temperature and light intensity data - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 2.0000 2.0000 number
TRANSECT varchar enum
SITECODE varchar enum
QC_LEVEL varchar enum
DATE_TIME datetime freetext
AIRTEMP_INST numeric(1) range -59.0400 398.6700 degrees Celsius
INTENSITY numeric(1) range 0.0000 341690.0000 lux
DAYLIGHT varchar enum
TIME_GAP varchar enum
EXTREME_TEMP varchar enum
JUMP varchar enum
EXTREME_INTENSITY varchar enum
HIGH_INTENSITY varchar enum
RADIATION_BIAS_INTENSITY varchar enum
LOW_DAYLIGHT_INTENSITY varchar enum
NIGHTTIME_INTENSITY varchar enum
SNOW varchar enum
TEMP_SPIKE varchar enum
FIELD_NOTES varchar enum
VISUAL_1 varchar enum

Attribute definitions

AIRTEMP_INST
Instantaneous air temperature recorded on a specified interval (e.g., every 15 or 20 minutes)
AIRTEMP_MAX_DAY
Maximum air temperature for the day
AIRTEMP_MAX_QC
Maximum air temperature quality control codes
AIRTEMP_MIN_DAY
Minimum air temperature for the day
AIRTEMP_MIN_QC
Minimum air temperature quality control codes
DATE
Date of Measurement
DATE_TIME
Date and time in Pacific Standard Time (PST) of measurement
DAYLIGHT
An indication of day vs night, daylight hour based on sunrise/sunset table
DBCODE
FSDB Database Code
ENTITY
Entity Number
EXTREME_INTENSITY
Extreme intensity flag
EXTREME_TEMP
Extreme temperature flag
FIELD_NOTES
Site inspection flag
HIGH_INTENSITY
High intensity flag
INTENSITY
Light intensity measured under the PVC shield on a specified interval (e.g., every 15 or 20 minutes)
JUMP
Temperature jump flag
LOW_DAYLIGHT_INTENSITY
Low daylight flag
NIGHTTIME_INTENSITY
Nightime intensity reading flag
QC_LEVEL
Quality control flag indicates level of quality checking performed
RADIATION_BIAS_INTENSITY
Radiation bias flag
SITECODE
Site code for the measurement station
SNOW
Snow flag
TEMP_SPIKE
Temperature spike flag
TIME_GAP
Time gap flag
TRANSECT
Transect or cluster for the given site
VISUAL_1
Visual/manual QC flag

Enumerated domains

Enumerated domain for attribute: DBCODE

Codes for DBCODE
Code Description
MS036 FSDB Database Code MS036

Enumerated domain for attribute: TRANSECT

Codes for TRANSECT
Code Description
CC Cold Creek
DS DS
LL Lower Lookout Creek
MD MD
RE Road's End, at the end of NF-1507
UL Upper Lookout Creek
CM Carpenter Mountain

Enumerated domain for attribute: SITECODE

Codes for SITECODE
Code Description
CA501 HJA Cold Air Station #501, Lower Lookout transect, elevation 669m, north
CA502 HJA Cold Air Station #502, Lower Lookout transect, elevation 646m, north
CA503 HJA Cold Air Station #503, Lower Lookout transect, elevation,557m, north
CA504 HJA Cold Air Station #504, Lower Lookout transect, elevation, 527m, north
CA505 HJA Cold Air Station #505, Lower Lookout transect, elevation, 528m, south
CA506 HJA Cold Air Station #506, Lower Lookout transect, elevation, 577m, south
CA507 HJA Cold Air Station #507, Lower Lookout transect, elevation, 596m, south
CA508 HJA Cold Air Station #508, Lower Lookout transect, elevation, 624m, south
CA509 HJA Cold Air Station #509, Daly Spring cluster, elevation 986, above spring
CA510 HJA Cold Air Station #510, Upper Lookout transect, elevation, 903m, north
CA511 HJA Cold Air Station #511, Upper Lookout transect, elevation, 912m, north
CA512 HJA Cold Air Station #512, Upper Lookout transect, elevation, 841m, north
CA513 HJA Cold Air Station #513, Upper Lookout transect, elevation, 806m, south
CA514 HJA Cold Air Station #514, Upper Lookout transect, elevation, 813m, south
CA515 HJA Cold Air Station #515, Upper Lookout transect, elevation, 813m, south
CA516 HJA Cold Air Station #516, Upper Lookout transect, elevation, 845m, south
CA517 HJA Cold Air Station #517, Upper Lookout transect, elevation, 876m, south
CA518 HJA Cold Air Station #518, Upper Lookout transect, elevation, 900m, south
CA519A HJA Cold Air Station #519A, Lower Lookout transect, elevation, 613m, north
CA519B HJA Cold Air Station #519B, Upper Lookout transect, elevation, 925m, south
CA520 HJA Cold Air Station #520, Upper Lookout transect, elevation, 957m, south
CA521 HJA Cold Air Station #521, Daly Spring cluster, elevation 987, above spring
CA522 HJA Cold Air Station #522, Daly Spring cluster, elevation 980, below spring
CA523 HJA Cold Air Station #523, Daly Spring cluster, elevation 974, below spring
CA524 HJA Cold Air Station #524, Daly Spring cluster, elevation 962, below spring
CA525 HJA Cold Air Station #525, Cold Creek transect, elevation 1058, south
CA526 HJA Cold Air Station #526, Cold Creek transect, elevation 1063, south
CA527 HJA Cold Air Station #527, Cold Creek transect, elevation 1051, north
CA528 HJA Cold Air Station #528, Cold Creek transect, elevation 1064, north
CA529 HJA Cold Air Station #529, Lower Lookout transect, elevation, 756m, north
CACARP HJA Cold Air Station on Carpenter Mountain, elevation 1616m, high topographic position
CAMDPI HJA Cold Air Station Moreau Depression Pit, elevation 1134, in sink
CAMDRI HJA Cold Air Station Moreau Depression Ridge, elevation 1138, above sink
CAROAD HJA Cold Air Station at Road's End, elevation 1320m, low topographic position

Enumerated domain for attribute: AIRTEMP_MAX_QC

Codes for AIRTEMP_MAX_QC
Code Description
Value passed QC test
1 No data collected - instrument failure
3 Insufficient number of hourly observations to generate a valid daily observation
8 Too little variation in hourly observations to generate a valid daily observation
9 Too many consecutive days with the same daily value

Enumerated domain for attribute: AIRTEMP_MIN_QC

Codes for AIRTEMP_MIN_QC
Code Description
Value passed quality control test
1 No data collected - instrument failure
3 Insufficient number of hourly observations to generate a valid daily observation
8 Too little variation in hourly observations to generate a valid daily observation
9 Too many consecutive days with the same daily value

Enumerated domain for attribute: QC_LEVEL

Codes for QC_LEVEL
Code Description
1A Data is published and unlikely to change - automated range checking and manual review has been conducted.
1D Data is published and unlikely to change - data is derived or aggregated from published data of level 1A
2A Data is published and unlikely to change - Level 1A data has been modified such that data gaps may be filled or problem data may be removed
2D Data is published and unlikely to change - data is derived or aggregated from published data of level 2A

Enumerated domain for attribute: DAYLIGHT

Codes for DAYLIGHT
Code Description
Night
1 Day

Enumerated domain for attribute: TIME_GAP

Codes for TIME_GAP
Code Description
No time gap in data
1 Time interval between measurements is greater than the threshold (15 or 20 minutes)

Enumerated domain for attribute: EXTREME_TEMP

Codes for EXTREME_TEMP
Code Description
Temperature change relative to prior reading is within prescribed range
1 Temperature change relative to prior reading is outside the possible range (greater tha 42 or less than or equal to -20 degrees C)

Enumerated domain for attribute: JUMP

Codes for JUMP
Code Description
Temperature change relative to prior reading is within prescribed range
1 Temperature change greater than 5 degrees C relative to prior reading

Enumerated domain for attribute: EXTREME_INTENSITY

Codes for EXTREME_INTENSITY
Code Description
Light intensity value is within the prescribed range
1 Light intensity reading is an impossible value (greater than 40,000 lux)
9 Light intensity is not measured (no sensor present)

Enumerated domain for attribute: HIGH_INTENSITY

Codes for HIGH_INTENSITY
Code Description
Light intensity value is within the prescribed range
1 Light intensity value likely associated with greater than or equal to 3 degree C bias relative to aspirated sensor (greater than 18,000 lux)
9 Light intensity is not measured (no sensor present)

Enumerated domain for attribute: RADIATION_BIAS_INTENSITY

Codes for RADIATION_BIAS_INTENSITY
Code Description
Light intensity value is within the prescribed range
1 Light intensity value likely associated with greater than or equal to 1.5 degree C bias relative to aspirated sensor (greater than 7000 lux)
9 Light intensity is not measured (no sensor present)

Enumerated domain for attribute: LOW_DAYLIGHT_INTENSITY

Codes for LOW_DAYLIGHT_INTENSITY
Code Description
Light intensity value is within the prescribed range
1 Light intensity reading less than or equal to 0 during daylight hours
9 Light intensity is not measured (no sensor present)

Enumerated domain for attribute: NIGHTTIME_INTENSITY

Codes for NIGHTTIME_INTENSITY
Code Description
Light intensity value is within the prescribed range
1 Light intensity reading greater than or equal to 0.1 lux during nighttime hours (defined as outside of daylight)
9 Light intensity is not measured (no sensor present)

Enumerated domain for attribute: SNOW

Codes for SNOW
Code Description
Snow is not affecting the temperature sensor reading
1 Temperature within plus or minus 0.7 degrees C for 2 days indicating that the sensor might be buried under snow

Enumerated domain for attribute: TEMP_SPIKE

Codes for TEMP_SPIKE
Code Description
Temperature change from a 7-record (centered) median is within prescribed range
1 Temperature deviates more than 7 degrees C from a 7-record (centered) median

Enumerated domain for attribute: FIELD_NOTES

Codes for FIELD_NOTES
Code Description
No fallen or broken sensor or shield reported during site inspection
1 Sensor was on ground and/or radiation shield was broken at site inspection; all readings from day of inspection back to day of previous inspection are flagged with "1"

Enumerated domain for attribute: VISUAL_1

Codes for VISUAL_1
Code Description
No highly suspect reading was detected when visually compared to other sensors in the same transect. Applies only to the Lower Lookout (LL) and Upper Lookout (UL) transects
1 A highly suspect reading was detected when visually compared to other sensors in the same transect. Applies only to the Lower Lookout (LL) and Upper Lookout (UL) transects