Time Codes

E
abbreviation for "electronic." Eruption was determined by an electronic data logger. Most electronic times are initially reported by NPS rangers or volunteers. Some electronic times have been determined by GeyserTimes users.
ie
abbreviation for "in eruption." Eruption was observed, but not at the start.
ns
abbreviation for "near start." Eruption was observed within a minute of the actual start time.
ini
initial eruption for a geyser known to erupt in series
maj
major eruption
min
minor eruption
wc
webcam
?
a questionable eruption. Observer thinks that an eruption occurred, but isn't 100% sure.
A
abbreviation for "approximate." The "A" designation helps GeyserTimes calculate intervals. It is understood that these intervals may be incorrect on the order of hours, or, in some cases, days or weeks if the unobserved time-period was longer than overnight. This symbol has 2 uses
  1. When an eruption was observed, but a specific time was not noted. Later, it was remembered that it did erupt at approximately this time.
  2. For seasoned observers: Some geysers have tell-tale signs that they erupted. Historically, these entries have simply been labeled "overnight." That is, a geyser was in observation until night-time, left unobserved, and then observed again the following morning. Between those times, it had erupted. A known eruption occurred between certain times. It is appropriate to use the "A" designation for a time half-way between observations (in rare cases, an expert observer may choose to enter a time other than half-way between observations). "A" entries should always be accompanied by a detailed note explaining the situation to future researchers.

Other Terms

Entrant
individual that entered the eruption into the database
Observer
individual that observed the eruption (if different from the entrant)
Baseline
A marker placed on the side of a bordwalk or trail that has been measured to be a set distance away from the geyser. By standing at the marker and measuring the angle between the ground and the top of the geyser a height can be calculated.

Observer Codes

OFVCL-EV
Old Faithful Visitor Center Log - Electronic Version
RTED
Ralph Taylor Electronic Data

Grand Geyser Codes

D#/
When there is an is an interval between Turban eruptions is 25min or greater there is a Turban Delay with the letter "D" and the number of Turban eruptions before Grand starts (such as D3/T2Q)
V#/
When it is time for Turban or Turban starts, and Vent overflows but Grand does not erupt, there is a Vent Delay with the letter "V" and the number of Turban eruptions before Grand starts (such as V3/T2Q)
G
Grand initiated the eruption
T
Turban started before Grand
*
long 2nd burst (d>=1m15s)
#
long 3rd burst (d>=1m15s)
C
Vent & Turban continue after end of Grand
Q
Vent & Turban quit after end of Grand

Great Fountain Terms

p=# or Pause=#
Pause for Great Fountain's is the length of time in minutes between the 1 meter boil (which is the official start time of the eruption) and the time of the first burst that throws water out of the crater

Group Abbreviations For Unnamed Springs in Yellowstone

BBG
Biscuit Basin
BSB
Black Sand Basin
CDG
Cascade Group
CGG
Castle,Grand, & Sawmill Groups
CLC
Chain Lakes Complex
CLX
Culex Basin
DSG
Daisy Group
FCG
Fairy Creek Groups
FLG
Black Warrior(Firehole Lake) Group
FTN
Fountain Group
GFG
Great Fountain Group
GHG
Geyser Hill Group
GIB
Gibbon Geyser Basin
GNT
Giant Group
GRG
Grotto Group
HFG
Heart Lake's Fissure Group
HLG
Heart Lake's Lower Group
HMG
Heart Lake's Middle Group
HRG
Heart Lake's Rustic Group
HUG
Heart Lake's Upper Group
IMP
Imperial Group
KLD
Kaleidoscope Group
LSG
Lakeshore Group
LST
Lone Star Group
MGB
Midway Geyser Basin
MGG
Morning Glory Group
MHG
Marshall's Hotel Group
MMG
Morning Mist Group
MMS
Morning Mist Springs
MYR
Myriad Group
NBK
Norris Back Basin
NPR
Norris Porcelain Basin
OFG
Old Faithful Group
ORG
Old Road Group
OSG
Orange Spring Group
PBG
Punch Bowl Group
PIN
Pine Springs
PMG
Pipeline Meadows Group
PNK
Pink Cone Group
POT
Potts Hot Spring Basin
QAG
Quagmire Group
RSG
Round Spring Group
RVG
River Group
SDP
Serendipity Springs
SHO
Shoshone Geyser Basin
SMG
Sentinel Meadows Group
SPR
Sprinkler Group
TGG
Tangled Geysers
THD
Thud Group
UPG
Upper Springs
WCG
White Creek Group
WDG
White Dome Group
WSG
Westside Group
WTL
West Thumb Lower Group


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